They never said they aren't willing.
Printable View
Quistis Card game/RNG drops, Strago/Quina/Kimahri all needed specific monsters within RNG encounters so yes Blue always has had RNG with it not always tied directly to learning the ability but sometimes encountering said monster so with ffxiv being an mmo only rng they can choose is actually learning it as monsters are stationary
having the same problem with glower. Like 12 kills in now
you'd think a quest required one would be a little less harsh than like primals
You can self destruct after killing the Sentry and not learning it.
Keep in mind that the main reason behind giving certain spells a low chance of being learned is to slow down progression. There isn't much for Blue Mage to do after collecting all of its spells. If Blue Mage had access to more content, the process of learning spells wouldn't have to be so slow.