I've quit because of the same reason quite a while ago, but the latest action of blizzard is an all time low that, had I not already quit before, would've made me quit now.
Resto seems have been in a nice place for a while (both MoP/cata), not ele/enh though. With totems becoming spells, especially ele will be hit hard (and it isn't exactly a strong pvp spec atm).
IMO ele/enh lack in kiting/gap closing, in short mobility.
And since ele is more reliant on kiting than other casters due to more hard casts, and enh being dependent on high uptime for both mana and MSW procs (plus having cds as recource instead of a recource you can pool), we' esp hit hard by those issues.
Totems becoming spells is basically the dot on the "i" (does this phrase exist in english?
) that's making several people quit/reroll now, there's stuff piling up.
I think your brother might have agonized other this before the latest announcements.