My feedback for learning Blue Magic from Primals is pretty simple: It's not fun.

It's not fun to keep trying, over and over and over again to obtain nothing. Especially when it's for a spell that we see in front of our faces, every single time. Unlike trying to get a whistle, where the thought is, "Ok, I've beaten them 50 times, maybe there will be one on the 51st try." Instead, what we have to deal with is, "I've seen the same ability 50 times, maybe I will learn it on the 51st try, even though I'm seeing it every time." I can understand it taking a few tries to learn, but this is crazy. Stop it! Raise the chances of learning it. Anything above 5 attempts is complete madness. Learning blue magic from other Final Fantasy games besides Final Fantasy XI wasn't this painful, and the feedback from FFXI was already clear: The low chance of learning blue magic spells wasn't fun. Why make the same mistake twice?