As Torak mentioned, the dispel commune hasn't been changed as far as I know. Probably not since shamans were introduced, in fact. I've always felt that a shaman was awesome for fighting almost any class that relied on either sanctuary, shields, or buff spells such as those that a transmuter has.

And shamans were the original class to need "bashmen" back in the day. Dispelling someone's protective shield+having a bashman usually meant a pkwin.

You're seeing it more, naturally, because of the shaman revamp (and thereby more shaman chars being played). But I wouldn't hold your breath waiting for it to be changed.

And no I'm not playing a shaman currently, nor do I expect to anytime in the near future.