Agreed. Even as more people get access to Provenance, greed comes first for most people over people actually getting the spells to learn them (This is why I wouldn't do Provenance in a pickup group) and everyone will be lotting Meteor/Arise and bazaaring it for millions of gil and thinking someone will actually buy them for that. I get the new item syndrome, but it's still stupid how high people are bazaaring them for (reasonable stuff I get, but ridiculous stuff I do not). Noticed that either Meteor's more common than Arise or WHMs are actually obtaining the spell when looking on FFXIAH item pages.
Either way, they should be more common than what they are.
tl;dr: Hey SE, there aren't going to be BLMs joining each other to destroy a mob when it's that hard to obtain. At least not for a long time.