It is easier to criticize the boxer after he has lost, however, none of the analysts have said anything about that before the fight and have said to bet on the Ukrainian because of that record. Also, who has Usyk fought before Anthony Joshua? Many of the are also not great names.
It is always easy to criticize someone that has suffered a lost recently and that is down on the ground at the moment and in moments like that a lot of people appeara and say "i knew it, Joshua has always sucked", which is now a pretty easy thing to do. I also think though that Joshua was hyped way to much in the past and some people said back then that he is already one of the all-time greats. Joshua has definitely one of the most impressive physiques of all time and he also has tremendous punching power and he can knockout every opponent with one punch, but from a technical point of view he never was a great boxer (better than Wilder though), in that regard Usyk and of course Fury are way ahead of Joshua and have always been.