Wait... I don't want to be inconsistent. Phae, can you quote where I okayed that? I sorry...
No, I can't... I think I just saw "approved" and not the rest of the sentence (for appropriate races).
I mean... what's appropriate mean? I could argue that for about anything, I think. A golem made by spellcasters, specifically to fight spellcasters? Why wouldn't they throw in a bit more OOMPH on his special abilities? Hmm... sounds appropriate to me!
Also, if its balanced mechanically, then it's balanced and should be allowable, I reasoned. If it's not, then it's not. Your call, though. I took it to boost my DCs, as I'm sure everyone else did. I can live without it, though.