I fully support your argument, and it's true that many people over hype the player, focusing only on his results with his previous team. What people don't realize is that the competition here is much more competitive and not as easy as they think. Now the fans who hyped Gyokeres up are facing embarrassment after a lackluster performance. This could be a bad start for Arsenal, or it could just be the same as last season.

You can't judge a player after just 63 minutes of play. Gyökeres is a quality player, but considering the challenges of the Premier League, some performances are acceptable. It's unfair to expect him to score 2-3 goals in 63 minutes. You should expect him to play a little longer and adapt to the team. I think he has a bright future. There's no doubt he'll do well for Arsenal.