That's an interesting point. Raiding only the 9-10 hours a week my guild does, everything has to be that much closer to perfect. Screw ups on 'farm' bosses are less tolerable and scheduling has to be more precise. We downed Leo for the first time last night. We had 3 people in there who had never seen the fight including the paladin who has been my pet project because her performance was beyond terrible. We had spent several nights on Leo, never getting lower than 35%. Crushed him on the 3rd pull last night and never spent that agonizing time trying to figure out how to survive 15%-0%
Point is, guilds that raid many more hours can afford to brute force it. We did it without our best lineup. Through raiding 20-30 hours per week comes repetition and builds 'skill'. The 10 hour a week or less guilds neither have the margin for error nor the amount of 'training' of thier more hardcore counterparts.
Its right to demand and expect to roll over content and not slack ass on farm bosses but to sit there after a single wipe on a boss you've one shot 3 weeks in a row and get all emo about it isn't going to help. No one is perfect and mistakes happen. There is this perception that the elite guilds step into raids and play perfectly and when your casual guild wipes on Lurker, "OMG, we suck" but it not accurate. That's not to say any player in one kind of guild is equal to players in another type of guild but both of those players are human and put thier pants on one leg at a time.
your hat may be nice, but I have the little white tank top that says Legendary right across my boobs. I win. (or more correctly, H wins)