I have to say, if player X plays 6-8 hours a day, and player Y plays 2-3 hours a day, then player X DOES deserve the rewards that come with that time investment. I've been both a casual player, and then later joined the top raiding guild on the server, and I can say, I worked my ass off to get in, then stay in the raiding guild. Yes, I said work, but it was both psychologically and gear rewarding. I don't believe for a minute when I'm playing all day, then raiding all night, that a player should be able to log in for a couple hours and get the same rewards that I do.
I know the discussion was regarding the time it takes to get a group, but I'm not sure I believe this either. I must have had 50 people on my friends list. If your willing to do the work, befriend clerics and chantys and play your class at a high level, forming groups shouldn't be all that difficult. And remember, I was a wizard. I spend plenty of time soloing and porting while waiting for groups. You just fill your time with other things, faction grinding, porting, working on quests, crafting(ring war quest), talking to friends.....there's plenty to do if you absolutely cannot find a group.