I don't think number 1 is realistic. If it's a healthy for-profit company, it will expand it's offering in the direction of product-market-fit.
BUT, I do think it would be hard to create a nice UI that didn't attempt to generalize everything down to the lowest common denominator.
I guess, my wishlist is a BTC-native account with the latest and greatest the network can do. But then, I wouldn't really care if they offered shitcoin services in parallel. That said, don't send me spam trying to get me to buy some meme.
My concern if they offered shitcoins is increased regulatory risk, increased development requirements - slower release cycles on bitcoin features. There are negatives in offering shitcoins