People made a good point here
In past Nintendo had 2/3 systems to support at the same time at the handhelds were usually the most successful of the bunch, now they only have one
Sure, some can argue portable games are less demanding to develop than home console games, but so are those ports/remasters
Yea this is something that's undeniably a little disappointing, the combination of teams didn't really lead to more games from a streamlined process, it just feels like one console gets the same amount of games as a 3DS + Wii U combination, which by itself is a pretty good proposition, except I'm not even sure if that's necessarily true (because I think for example only having Animal Crossing on one system might push Nintendo to need a system seller for the other system not getting a new Animal Crossing, and also the lower system specs of the 3DS allowed for games to be turned out quicker).
That thread from long ago that specifically said that the streamlining of game development wouldn't lead to more games but rather just help develop more ambitious HD titles was spot-on, which makes it a little bit harder to swallow that some games have gotten delayed a lot, or have taken a while to come out from initial reveal.
At the same time I'm not in denial, I know this will probably lead to a much better second half for the consoles lifespan. From what I remember (and I could be wrong) the 3DS post 2014 was a little barebones, you did have some years that were pretty close to great (like 2016 with Pokemon and Fire Emblem and Monster Hunter Generations, although even then that would be dependent on if you lived in the West or not, and Generations wasn't huge in the West), but at the same time it was obvious that both the 3DS and Wii U suffered from having original titles because Nintendo was gearing for their next system. In contrast, 2021 will probably be one of their best years, and while I don't think that will be true for 2023, 2022 should at least have some big original releases, giving it 2 pretty damn good years near the end of it's life.