That's the thing though, they're not pushing out enough brand new games; Kirby and Mario Tennis are all they've confirmed for Q1-2, that's a very weak showing.

As Machina and Mbolibombo have pointed out, this is the trend for the generation. PS4 and Xbox One's first two or three years have been marked by ports, remasters and cross-generation titles. Hell, look at the HD remasters and remakes that have launched in the last few months or which are still being confirmed for those platforms: it's a feature of the generation. It's a reflection of increasing costs, increasing risks, shrinking profit margins and customer demand.

Personally Switch, for me, strikes the right balance. There's so much content coming on every platform these days that's there's bound to be a mix of major titles, ports, indies, middle-tier, remasters and remakes. The market is so big that it's simply not possible to keep up with every major or quality release across every platform - 20 years ago that wasn't a problem. Case in point, I owned an Xbox One and Xbox 360, but being a multi-format gamer, I never got round to playing the Dark Souls series. Between multiple formats, other hobbies and my personal/professional life, there's only so much time and money most people can commit to gaming. Switch, with its portability and versatility, is a good antidote for that.

Switch has a mixture of new titles (Kirby, Mario Tennis, Yoshi, Fire Emblem, Octopath Traveller, No More Heroes 3, Lost Sphear), titles that are new to me (Dark Souls, Dragon Quest Builders, Ys VIII) and titles I don't mind replaying (Hyrule Warriors, Bayonetta 2) to keep me satisfied.  That doesn't include indies and doesn't include titles yet to be announced for the year, obviously. You might have played these ports or remasters before - but that doesn't mean everyone has. They just have to be new to enough people to be worth playing. That's why GTA V and Minecraft are still selling on every platform under the sun. That's why Rocket League is going from strength to strength. It's why Mario Kart 8 DX has shifted 5 million copies and counting.

EDIT: Finally, I want to address your baseless 'shovelware' claim. Switch had a higher Metacritic average across all titles last year than PS4 - it had the highest number of 75% plus exclusive titles after PS4 and PC and the highest number of 'great' titles across every platform last year (90% plus). The average Metascore of Switch releases in 2017 was higher than that of (from lowest to highest Metascore) Vita, PS4, and 3DS, equal to Xbox One (which had fewer good or great exclusives) and only lower than PC (highest Metascore of the year). Not the perfect metric by any means, but one that, as far as an objective measure of quality for 2017 releases goes, is about the best thing we have. Consider that Switch had been on the market for 9 months when that happened, and in terms of the number of quality releases and the overall quality of its library, it's holding its own against systems in the prime of their lives and against PC, which has a vast quantity of software, and I think, if we are going to attempt to be somewhat objective about it, Switch's critical and commercial performance in 2017 flatly contradicts your claims. 

Because that's quite a wide range of different games. You got a platformer, a big open-world action/adventure, an online shooter, a JRPG, and a kart racer. There's also coverage for tactical RPG with M+R and fighters with ARMS (though I'm not a big fan of it tbh). Most of these games are considered good by most people, so mostly everyone who likes one of those genres should be able to enjoy at least one of them.

*snip*

Metacritic scores are not a realiable metric for exclusive games, they only work for multiplats. Think about it. Exclusivity means that you have to buy a certain platform to get access to those games. You buy a certain platform for a reason, because you know beforehand that you will get the titles that you enjoy. This means that the scores for exclusive games are given only by hardcore fans of those games. What is missing from those scores are all the people who didn't even buy the platform in question, because they were not interested in what it has to offer. How do you think they would score those games? Well, they won't score them at all because they weren't convinced to even buy the required hardware to play them. This means the scores for exclusive games come solely from fanboys, basically. This is especially true for reiterative franchises like Mario and Zelda. Totally new entries at least have to do something to earn their fandom, I'll give you that much.

It's not that there are too many ports, the problem is that there isn't enough original content. Yes, Nintendo's output has been nothing less than stellar last year, but third parties have been sleeping and haven't brought anything new or worthwhile to the Switch.

Apart from the beautiful Project Octopath, Is there even one new third party game announced for 2018?

Look at PS4 int the beginning. Tomb Raider, Skyrim, GTA V, Last of US - the PS4 was the pinnacle of recycled content. The lack of great new games led to Sony PR pushing The Order above what it was. If it had been marketed as a proper mid- to low-level game (which it was) the backlash wouldn't have been that big. But as PR painted it as major AAA-title the people were disappointed. Sony would've never done that, if they had proper AAA-material to show. Nintendo has looked at that. Ports work.