I don't understand what the issue is?
The daily roulette, was made to entice better players to play in pick up groups with players who:
1.Play alone
2. Are New
3. Need gear (Cant raid)
4. Aren't as talented at MMO's
But yet here are these players, gladly taking the bonuses Square offers to help the noted people above, complaining about playing with them.
I think some people's skill cap or time cap will be vastly limited compared to the people logging in 3+ times a week. But Square does a great job getting different levels of players to play together. If you don't like casual players, stick to the content that is very time intensive. Problem solved.