The Aberdeen players were apparently guilty of breaking the governments rules pertaining to footballers. As far as I can see they didn’t break any rules for the general public. Given that they had been tested by their club prior to the game and presumably hadn’t trained since, I very much doubt if they spread the virus and actually were far more likely to have picked it up from the public post-game. If they’ve broken rules for players, fair enough, throw the book at them. It is questionable whether pubs or restaurants should be open in the first place, though. I’m sure there were plenty of non-footballers staggering about pished on the evening in question who didn’t get at test a few days later.
All that said, players should be straight home after beaten by their biggest rivals.