I must say that I really want a more powerful dock, so I can play PS4 and XONE games in future years without buying a PS5 or XSX
I don't really care that much to play high-end games in portable mode. I had DS and 3DS to play games designed for portable experience. Portable mode for me is to play more casual games like Animal Crossing, Pokemon, or maybe other RPGs, os maybe even indie games. For most of AAA games, action-adventure games, etc I'm more than comfortable to only having a more powerful dock
The issue with this is that it breaks the entire premise of the Switch, which is that you can play games on the go or on the TV. Any game.
If only the dock is improved, they'd either have to spend a lot of time (and money) making lower quality assets and graphics settings for portable mode, or make docked-only games. Which kinda goes against everything the console is about.