Why would devs back another underpowered Nintendo console?

[fleischr]

Soundwave said:

Lots devs has PS3/360 engines you know. Those can likely easily port to the Switch.

Don't assume "developer support" means all the latest and greatest games. Skyrim (a 5 year old game) being the most heavily emphasized third party game in the trailer probably was a pretty big tip off.

Why the hell would you choose to demo your brand new game system with a 5 year old game? It's because those are the types of games the Switch will actually be getting. 

360/PS3 ports weren't a winning premise on WiiU - why would it suddenly work on Switch?