Spot on. People have misaligned expectations for the kid and when they don't get met they'll be disappointed.
Some people genuinely believe he is already that good hence why you see posts confidently claiming that he's better than a list of already proven PL strikers playing for top teams. They think the kid will just walk in and bang them goals at an elite rate.
I've been trying my best to remind folks to tamper their expectations so it doesn't lead to uncalled outrages when he doesn't automatically turn out into what we want him to be. I've watched several of his full clips(clips with all his touches and not just highlights) and the kid is talented but raw. He's got pace, strength, can run the channels but his game isn't quite there where he'd come in the PL and perform at the level some are expecting him to in his first season.
I've already said this, he'll be a much better player toward the end of the season than he currently is.