The problem here is as it ever was.
Basin saves and the prevalence of save dips makes DC dependant casting borderline irrelevant. Less so on infinicasters but the point stands.
This leaves most casters in a place where they are dependant upon summons. There is a loud corner of the community who hates summons and howls for their demise.
Some massive spell reworks have tried to address the DC problem where failed saves still do something, but its usually not consequential enough to make DC casting viable in and of itself.
So we have this conversation again and again.
To their credit, the staff has done any number of things to make these classes more playable, from gsf perk, to infini cantrips, to autocast, to spellmageddon, to encorporating some 5e ideas.
While all of these contribute to Wizarding qol, I dont think any of them address the basic issues encountered in PvP or the general save bloat of the server...mobs included.