Last year, Jimmy Butler ate Jrue Holiday in the playoffs. Sure, Giannis was injured for a portion of that, but still - can you imagine what Butler would do to Dame vs. Jrue? What do the Bucks do if Tatum hunts Dame in a switch? I think the Bucks are going to be unstoppable on offense, but they are going to have real issues with perimeter / switching defense which they did not have too much issues with in recent years.
I imagine Bucks fans will be shocked how good their offense is, but they will also have to learn what it means to live with a minus perimeter defender, especially in the playoffs when teams will really hone into it.