If you lay down your arrangement as a never ending loop, it will sound ****ing looped...this has nothing to do with fl itself sounding "looped".
If you record your pattern from A-B and back to A shit will sound looped...end of story.
Who said anything about laying down a never ending loop? I don't do it personally. I don't use loops period unless a client specifically asks me to. Always have subtle changes, different notes used, or different rhythm. I don't know why you're getting so up in arms about it man, but fruity LOOPS is for LOOPS generally. It may have branched out, but as much as people want to say that FL is just as good as another DAW are lying to themselves. There is a reason you don't see it as the centerpiece in a 300/hr recording studio. You'll see protools, maybe DP or logic, but not FL. The nature of FL is for looping. Its what its made for. The question was asked originally why a producer wouldn't want fruity loops musicians. Because fruity loops, is for looping. I answered a question directly. Or did you forget the original question?
There is this old saying "its the ear, not the gear." But at the end of the day, people don't pay 300 an hour at the big houses just for an ear.