I probably watch more Marvel Snap content on YouTube these days, and I have no interest in someone trying to put me onto other card games when I do.
It's fine to focus a channel on just D&D, just as it's fine to cover TTRPG's in general.
Having my players try to argue, haggle and con every NPC gets old pretty quick for me*.
In theory, if reducing options to spend gold would shifts my players away from this as a default, then I'd be all for it. Although for me it’s more about finding other things to motivate my players rather...
You get new cards on the collection track until you are pool 3 complete, then you can only get cards through spotlight caches. System is actually way better than it used to be.
I find I have meaningful choices.
Mostly through multiclassing which means there's options to consider at every level, but also Feat/ASI selection, Spell selection, etc...