Sure - but that's a gimmick that's pretty widely enjoyed. It's not like the 3DS's 3D that pretty much everyone turned off after giving it a shot, or like the Wii's motion controls that most people got sick of before the console retired. As far as gimmicks go it's arguably their most successful ever.

By that I mean the fact that it's handheld - if you were mostly talking about the detachable joycons then I'd agree at least somewhat, especially since they removed that from the Switch Lite - but it is pretty handy in a lot of situations still.