What I’ve found (in multiple systems across different companies) is spells and other class abilities that are in any plentiful amount will eventually have duds in them, and eventually printing schedules means you can’t fix/test them all. So you send them off, hope they don’t break the game, and make errata later if they are truly broken. This is a case where they had time to fix them, eventually.
Final Fantasy 6, because I have played through it on SNES, PS1, Rom, then SNES again… oh, and there’s 500 hours in Slay The Spire. Maybe also Civ 3.