Patch 2.2 has been out for over a week now. Most of the mods that are still being updated have been updated by this point. If they're mods you can't live without, go get them now. No more excuses. I've covered a couple different mods such as Omen (necessary enough that Blizzard may eventually integrate it into the game) and Deadly Boss Mods (for the raiders and PVP battleground folk).
On some of the bosses, it is almost impossible to win without having some type of timer to know when events are coming up. Gruul the Dragonkiller is one of those bosses. Having at least a decent idea of when the shatters and silences are coming are essential. So, go get those mods.
We had a guild run to Gruul the other night. Out of 25 guildies, something like 11 had the required Deadly Boss Mods. So, we told everyone to get it. What seemed like 15 minutes later, there were still only about 17 people that had it. What's up with that? Are there certain people that are that leet that they don't need it? Grr... required raiding mods are there for a reason, people. Kk... enough of my rant.