Other problem is terrible players who just don't learn or listen.
LFR has been frustrating this tier, and I hate it. However, I will still do it each week for VP and gear upgrades, however, my main doesn't need anything anything from it, apart from tier for the bonuses.
Will still do it on my alts.
It should get better as the weeks go on, when people actually learn what to do.
The most frustrating thing is, getting a boss to a very low %, with terrible DPS (30k dps, in 470+ gear is mind boggling bad), then wiping due to healers having no mana because of DPS being terrible.