People have voted with their wallets and they are satisfied with SwSh. It's not without its issues, but it is still a fun game and I can see why it is selling the way it is.
I'd say it's more due to being the first true console Pokemon game. Anecdote, but I know plenty of people who weren't interested in the older Pokemon games on 3DS getting excited and buying it on Switch and playing on the big screen at home.