That would be nice to have, but as we know, mage is not too useful in game. If mage attacks ever got a buff, then I would support it, but at this moment, it would be just waste of time to code it in.
I think mage is very useful, in near max mage gear, using fire surge and killing zulrah I'm faster than using max range with a blowpipe. Also good for camping kraken, and any of the barrage slayer tasks, and barrows.