Ifs.... buts....
I can imagine a lot of negaitve things, such as having an accident in my car on the way home tonight, but it won't stop me getting in my car.
Likewise, the possibilities you describe could happen, but I'm not going to not play the game on the basis they might. I reckon I've had my 50 quids worth already, but YMMV
Good for you, I dare say there are people who bought and actually enjoyed Elder Scrolls Online. I didn't because I didn't want to play an online only elder scrolls game, I did beta test it as it happens which to their credit I was not charged for. Likewise I do not really want an online Elite game, I bought into Elite in large part because its developers had made a commitment to the principle of single player offline gaming. But so long as you have got your moneys worth it really doesn't matter if anyone else does I guess.