Giannis was hurt as well against Atlanta, so hard to say. It's impossible to say who would have won if someone wasn't hurt. Everyone is probably playing with some sort of injury at this point. The Bucks were a very good team.
There is a difference between everybody is hurt and your best player missing multiple games. The Bucks remind me of some of those terrible Cleveland teams that LeBron dragged to the finals- one great player surrounded by meh