I don't understand the big deal. MP Regen is an OPTION, just like Siphon MP, Tranq/Exalt, Stygian... You don't have to utilize it if you don't want to. How other people play with their MP management is not your concern. I do agree with Rydin that this will be more of a factor once they shift to smaller parties and you're the only mage.

Before MP Regen on an NM, my party had to designate some one to "fetch" mobs for the mage to siphon MP. A total waste of a DD.

Instead of messing with MP Regen, they should get rid of the point system. Sooo many spells are not being utilized because you have no room for them.