Use the "focussed spellcaster" thingy, and you't not giving up conjuring anymore, you already didn't have it.
Besides, quality grade storytelling material.
Like a mage that that would love to help and heal people (or only his team), but all he can do is blast people? Now I have rules for that.
Though I would assume they are just as available for aspected magicians, which would have fewer losses, the difference is just 20 karma.
The option allows to actually focus your karma when creating a 'focussed' awakened (just the character focus here, not the specialities).
I was certainly thinking about using this one for a manipulation specialist - He wasn't going to do anything else, might just get -2 drain on it.
Now, I agree the actual rules are sorely lacking, in multiple respects, but I like the concept.
Well, I can't actually see the benefit of elementalist.