Lukaku is over rated if anything. Most people look at his goal tally and think he’s some kind of elite striker but when you sit down and watch Everton on a semi-regular basis you can see that he isn’t all that.
I guarantee you that all the Arsenal fans that were clamoring for his signature barely watched him play, otherwise they would see not only how much of a liability he can be in big games but would notice how many glaring flaws there are in his overall game.