Projectiles do not serve a purpose in PvP
You do realize every new elite specialization has some form of reflects? Scrappers have a ton of reflects too, nerfing ele just brings up other up stuff to the meta.
If you ask me, the problem is that so many things nowadays are projectiles, seriously. Ele focus offhand has never been a problem till now that so many classes have projectiles. This makes core specs fall out of meta even more, you either have projectile reflects or are left in the dust. Edit: Oh and ele reflects along with auraheal is the ONLY thing keeping them from not being useless.