I don’t understand this angle. Didn’t UEFA agree to the cancellation/postponement before the match? Like, how do you agree that day and now come back and say “we’ll you had 13 players and should’ve fielded a team, so you forfeit”. That’s just a ridiculous position.
“We were unable to reschedule, so you have to forfeit, because we’ve now decided you should have played the original game”.
UEFA logic.