I think the problem was for every good game that came out (De Blob, No More Heroes, Tatsunoko vs Capcom, MadWorld, etc.) there were probably hundreds of random shovelware games released (Chicken Shoot, Balls of Fury, Anything Petz, etc.) that just overwhelmed any good games to come out on the system.
The Wii was so dominant in the casual space and it was a time that pre-dated the rise of smartphone games. That everyone wanted to release something on the Switch with eyes on revenue.







