I don't know by which logic saying that someone "greeded" his client/son out of a job opportunity instead of admitting they actually turned you down is acceptable.
The recent quotes from Italy are nasty as well of course, but since they were release after the whole Haaland story I don't see how they are connected to the Haaland stories. And if we apply your logic the other way around we could say that Raiola's quotes are unprofessional but not really that bad since he's kind of right. It doesn't really work that way, does it?
Of course he turned us down and chose Dortmund instead. That's a fact. Has nothing to do with speculation as to why he did that.
It is as likely that he did that because of Raiola's historically greedy demands (which United now refused to meet) as it is that he thought Dortmund were a better club for his growth and development despite United willing to meet his demands. I don't know by which logic you're choosing the latter over the former.