I don't understand this? Do you not ever play with BURNDAYRAZ or something? In almost every build (WL, Berserker, Paladin being the exception) getting this early is absolutely mandatory to my play style, and is completely irreplaceable. Not to mention your locker item...
Yes, the current GG's desecration penalty is a disqualifier for the vast majority of classes as he exists right now
. What I'm saying is that by loosening things up and creating exemptions you create openings for characters to ignore the restrictions outright. If GG ignores locker items, then a character who hasn't found any glyphs he's particularly attached to can just desecrate him and lose only his two starter potions.
The GG is really of two extremes; either he will take away something invaluable or irreplaceable and you can't touch him, or you just convert everything prior to desecration and he does nothing. The question is whether you have anything irreplaceable in your inventory, which is a dice roll that makes him vary from catastrophically punishing to not punishing at all. That huge variance is the problem.