Spell Reflect and Beneficial Spells

Would it be possible to exclude beneficial spells (such as bless, greater heal, cure) from the list of spells that moonstone reflects?

Mages are already pretty lame out in the field, and you can’t really do much with them alone. Its kind of a pain to have to take off prots to receive buffs anyhow. If its possible to filter out the beneficial spells that bosses don’t cast, it would make a mage friend more handy to have around.