So far, it's indicating to be the exact opposite.
The hardware concept is obviously liked by the public. The prospect of a relatively capable hybrid device is interesting to many.
The price is a hard pill to swallow, but in return you get a very flexible device, it's by far more graphically capable as a handheld compared to last gen.
The main launch game has all the indications of being a must-have title and a GOTY contender.
The pre-orders are gone. So it seems that the $300 price tag is not prohibitive enough. One may argue that sales will drop sharply after the N faithful are done in the initial run, but it's early days.
Many of the IPs have a massive/cult following (Zelda, Pokemon, Splatoon, Mario Kart, ...). I think there is a good chance of Mario kart 8 switch version significantly outselling the Wii U version.
The ports from the Wii U are a genius move by Nintendo - give those games a second wind while focusing on a quality library for 2018. onward.
Nintendo has been burried several times, yet they still live. They can afford to throw billions at Switch and yet they still won't be in real danger. So, if switch sales will be significantly below expectations, they could sell it at a loss without any danger/impact to the company. Heck, they could even buy several decent dev studios if they want.
It is really not of interest to Nintendo to have a really strong 3rd party support. It would be ideal to have a decent support which still leaves almost all the spotligth for their first-party title sales. A yearly FIFA and NBA, along with an occasional popular FPS, Action and RPG would bring switch a long way.
IMO, the biggeest omissions by Nintendo are no (simple) pack-in title and no option for (3g/4g) connectivity on the go. So the players must rely on Wifi availibility or their own mobile Wifi hotspots for online play.
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