Bucks thought Grayson Allen was the answer for something. They really should've kept the championship role players together...
Grayson Allen is actually making more over the next two years than PJ Tucker is this year and next. Despite how people feel personally about Allen, he is actually a decent player, but it was still an odd decision to make that trade-off for a team that just won a Title. They gave up 2 2nd rounders in the process, as well.
At the deadline, they tried to correct their mistake by acquiring Ibaka and trading away DiVincenzo. They also managed to acquire 2 2nd rounders to make up for the ones they traded away for Allen. Unfortunately for the Bucks, Ibaka made nowhere near the impact that Tucker did last year. So much so, that he barely even played in the playoffs.
So, yeah, Tucker and DiVincenzo would have been a much better duo than Allen and Ibaka. In hindsight, that is just really rough decision making on two separate trades by their GM, Jon Horst.
Grayson Allen is perfectly fine as a role player, but he isn't a #3 scoring option which is what he basically needed to be in the series because they didn't have Middleton. It was compounded with Holiday playing like crap. So everyone was trying to do to much, pressing, and generally not playing within the flow of the offense. It wore out Giannis as well, which we definitely saw yesterday. He was tired and done after about the 1st quarter (and certainly the 2nd half).
It seems pretty generous to call Allen their 3rd scoring option. In the first two games of the playoffs, he was a low end rotation rotation player, but then Middleton got hurt. They really only started him so they could keep their rotations the same. He is definitely behind Lopez, and I would have Portis and Connaughton ahead of him, as well. Sure, he had a couple of good games against Chicago, but I don't think people thought that was really sustainable.
I guess your main point remains the same - that he should not be a featured player - but I don't think that was ever really the case. I'm sure more was expected of him than Matthews, Hill, and Carter (of guys who actually played), but that's not saying much.