It get's a little tiresome yeah. I always do change around my talents though. Especially barrage, because that skill alone can get hunters kicked from a lot of dungeons, lol.
I'm surprised Blizzard hasn't said anything about barrage. I'm just really picky about when I use it outside of boss fights because I'd rather have the lesser dps than pull everything. The real problem is when I switch stuff it's like. Ok I need to switch lone wolf to exotic, pull out the pet, switch barrage to glaive, switch the focus macro that i use for it and switch the tellmewhen prompts. Kind of a pain in the ass.