Fix Arcane Stability?

Arcane Stability is a 5 point first tier arcane talent that gives you 20% pushback resist per point, with 5 points it make (only) your Arcane Missles and Arcane Blast spell pushback immune.

The problem is, with the new pushback system, this talent isn't really as useful as it used to be, but at the same time, with the new arcane blast, this talent is necessary for arcane in pve.

The new Arcane Blast gives you just enough time, if chain casting AB, to get in another AB with the debuff stacking, if you get your AB pushed back even one tick, it's going to mess up your rotation.

My solution would to be either, make it a 3 point talent, or, make it apply to all spells.

It's a nice talent but a 5 second channeled spell (Arcane Missles) that opens up your main spell school to pummel, kick, counterspell, spell lock, deadly throw, HoJ, etc. doesn't shouldn't really require a 5 point talent to make itself viable in PvP, and Arcane Blast/The Arcane PvE build, shouldn't require a 5 point talent just to stop raid damage from screwing up your rotation.

edit: Another victim of talent bloating is Arcane Fortitude; another nice concept, but is 3 talent points really worth a couple hundred armor?