A series very much suffering from the idea of trying to do a prequel set while being forced by the studios to crank up the special effects every time. This results in more and more powerful magic decades earlier. Any one of these super-powered wizards would have completely overwhelmed everyone we see in the entire 8 film original set. Including several of them who are still present in the originals but who seem to be 90% less powerful by the time Voldemort shows up.

Every time they break the rules for their own universe it just damages the validity of that universe for the original set.