Personally I am not interested in Sunday Ticket - but that is because the Cards are the only team I want to watch every play on. Otherwise I prefer RedZone.
So yeah I would think there is a limit to the number of subscribers they can get, basically primarily out of town fans.
I would think they can get just as many subscribers as their were on DTV or very close. I have a feeling they may be ok losing money on buying the package if they get a bunch of people to sign up for youtube TV - Which they will - that is the main goal is getting exclusive content people will sign up for.
Bandwidth almost everywhere is more than good enough, it is only out in rural areas that is any issue, and starlink is filling that gap quickly.
The lag means nothing if almost everyone has the lag - which they will. Even then, only hardcore gamblers should even care.
Cable and Dish is just totally dead. Everyone will be switching and a ton more stuff will go ala cart. The world changes and we don't go backwards.
If you can't handle the switch to streaming, just wait till you see what happens with AI in the next year. More has happened in the last month in AI than in all of history, and quite frankly it's actually scary.