I think you should allow Chelsea fans to celebrate their first win of the season because they can't remember the last time they got excited about their victory, even last season, they weren't comfortable with the way the club was playing, you're right, they should be happy for the time being, but they don't know how consistent the team will be, Madueke faced a weak team and scored his first hat trick for the club, but I doubt he will do so again, he has already scored three goals, one behind Haaland, but let's see how many he can score this season.
Madueke is just lucky, even though he has decent skill, but he's not consistent. The best signing by Chelsea is Palmer, while other signing are mostly bad players, only few are decent.
Luckily Chelsea will face many weak teams in the next month, so I will not be surprised if Chelsea will not lose any single match. Chelsea fans will be happy to see their team looks strong, but I will wait till they meet Brighton and Liverpool.
Whether it was Madueke's luck or not, because if it's about a hat-trick at least I can no longer say it was luck but about the good effort he made. But indeed, if we consider that Madueke is basically an attacking player or a forward, but the reality is that Madueke never had many goals in previous seasons either. Thus,maybe I also agree if Madueke got lucky, or maybe I can also still recognize the good efforts made by Madueke for making a hat-trick.
Also, because Chelsea have a lot of players in their squad, it could be a factor that Maresca will always rotate players. If that happens, then it is very likely that Madueke will also not always be able to enter the starting eleven or not always have the opportunity to enter the main squad in every match. But yes, it's also interesting whether Chelsea will still be consistent or not, because I think Enzo Maresca will also still make some experiments to determine the players in his main squad.