I think the problem here is that the gap between beeing "allowed to be gimp" (in exp pts) and "have to know how your job works" is to big. Lets face it, in the worst case you can afk hit 50 within 2 days of PLing and then you enter Ifrit/Moogle/Garuda and suddenly you have to actually play your job. And ofc for ppl that was sticking the finger in their ass while getting PLed instead of looking how the job should be played, it is a very hugh step and leads to several wipes.
I don't wanna start a pro and con PL discussion again, but imo PLing just grows an elite of noobs which lead to ppl crying here that the battles are to hard <.<
p.s.
Sorry for my caveman english lol