Oh, so casual players with RL jobs and responsibilities need not play...MMOs are only for the unmarried, unemployed, and unencumbered who can devote 22 hours out of the day for gaming?
Seems to me that this attitude might be at the heart of the whole PUG vs. Premade issue.
That was an extreme case. The person literally said they could only play 30 minutes a day. At 30 minutes a day, I'm not even sure how they hit 50 (unless it took them 6 months). So yes, someone who only has 30 minutes a day really can't judge a state of a game.
Even a modest 1 hour a day is a better judge, and is more than enough to step into a guild, find some friends, etc...
During peak work times, I'm often only really there for 2 hours max a day, if I don't play one of my other games (I even have a few casual games, for when I don't feel like serious pvp...)