Really good post. It's very similar to Game 1 against Boston. I realize Toronto is playing at a much higher level than Boston, but in Game 1 the refs let Boston play physical with Giannis and then combine that with Milwaukee's "other's" not hitting shots, and it allowed the Celtics to really collapse on Giannis. The rest of the series Giannis got way more calls which changed how Boston could defend him, allowed the other guys to get more open looks from 3, and then of course the other guys for Milwaukee started hitting more.
Until he develops a consistent outside game, so much of Giannis' effectiveness and ability to carry Milwaukee will come down to how the refs are calling the game and how aggressive he's being at attacking and forcing the refs hand.
This is not me blaming the refs for the Celtics losing. The Celtics were thoroughly outplayed and a mess overall. Just saying that how physical Giannis is able to be defended goes a long way to how teams can defend Milwaukee.