Storm spells being a self-target only spells has to be my all around favorite misconception.

Do people even think that? I doubt it, they're just looking for reasons not to improve Scholars use with them because "A Scholar didn't share Storm spells with me" clearly calls for "Don't buff Scholar" rather than "Stop being a whiny little sh*t and ask for Storm spells or kick the deadbeat for not sharing them". It boggles my mind how Storm II or any variation on that is overpowered, but Ballad III or Refresh II weren't. If a Bard doesn't give you Ballad, or any songs for that matter, you kick them from the party. If a Scholar is hoarding a +10% bonus to themselves, kick them from the party.
Difficult concept? Apparently so, since I see it repeatably crop up when ever Stormsurge or Storm II is concerned. Every Black Mage I know likes the idea of Storm IIs, but hey, I'm not a total bitch (honest) and they actually have Hailstorm or Thunderstorm when they need it. But hey, next update White Mage will be able to best Scholars Hailstorm with Boost-INT, no reason SE should do something about how crap Scholar cast Storm spells are, right?

Scholar out damaging Black Mage or ever even replacing White Mage is a close second.

Dear White Mages,
Scholar never had Haste, please shut up about us replacing you in Nyzul and bird parties, it never happened. If it did happen, be content that those parties got 5k/Hr while anyone rocking Haste could easily have managed 10k/Hr.

People need to shut up about Kanican, too. That maths was done on Flans. Take it to any real situation back then like HNMs/Sky/Sea and it instantly falls flat on its face, we remained MP efficient, sure, but with resisting actually being a thing back then, Scholars damage never added up and thus having a better damage/MP cost ratio never materialized. To even attempt to avoid resists Scholar needed to quite literally have the absolute best gear available. If you took Scholar to anything worth bragging about, you'd have had crippling resist rates. There is a reason Scholar never became a bandwagon job and that right there is it. The closest Scholar ever got was a bunch of people Astral Flow burning it when the Modus exploit went public - yes Astral Flow burns, so don't pretend like Scholar never caught on because leveling it was an issue.