I actually think the Switch is their most "traditional/conventional/standard/normal" system since GBA/GCN. Normal controller (in terms of inputs and layout), no second screen, no touchscreen controls in games, and while there's still motion controls they aren't the focus of every game (only one or two so far, optional or unused otherwise) and aren't compromising the controller i.e. Wiimotes. The gimmick this time doesn't affect the games or their design themselves, just where you can play them. You don't have to waggle or look down at another screen, Switch games are played the same as they would be on Sony/Microsoft systems or older Nintendo systems, you can just take them anywhere now is all.
But the Switch is underpowered compared to the competition, therefore it is totally a gimmick!
Yeah but other than that, which is only somewhat relevant for getting AAA 3rd party games, it is a standard system, atleast much moreso than DS, 3DS, Wii, and Wii U.