The situation with Lukaku is still not clear. Few days ago, I read that he will resume training as a Chelsea player for preseasons and that Inter Milan had withdrawn from signing him and it is also not certain if he will want to move to Juventus because he might consider that move as betraying his former club. What decision he will make remains a mystery to all and I hope he makes the right one for the sake of his career.
Lukaku to Juventus does not appear to be a viable option. I also observed on a TV news a few days ago that some Juventus fans were chanting in front of the stadium that they did not want Lukaku. I don't think Lukaku will join a team where he will be unappreciated or disliked by the fans. He should reevaluate his choices, and I hope he takes the best decision for his career.
This kind of scene for Juventus I think is something that is quite common.
Reflecting on the previous case where when Ronaldo's arrival was so welcomed but when Ronaldo left they were many who were in front of the screen saying they didn't need Ronaldo. This is ridiculous in my opinion and at this time when talking about Lukaku it could also be that this was initially rejected and when Lukaku arrived he could be hailed by fans from Juventus.
Besides, we need to realize that it is the management who decides in the end whether they reject or not but when the management's decision wants to bring Lukaku especially if Allegri feels suitable in the end they will accept so that things like this do not become a reason whether Lukaku deserves or not at Juventus.