To discuss the actual change, which I assume is a change in Wrath (but may come sooner since Koraa didn't specify), the few Shaman I've spoken to about it seem pretty excited. It seems minor, and may be minor in the long run, but this change would allow totems to be used through Spell Lock and Silence effects. When your Shaman gets Counterspelled in the arena, they'll still be able to drop Totems at least. It certainly won't fix everything, but you'll still have some of your defenses(and offenses) available to you, and you won't be completely shut down. There's still a long road ahead, but this is a step in the right direction.