Short answer: No.
Longer answer: No because class is part of the character's identity in WoW. Whereas in FF14, your job doesn't matter because it's so interchangeable.
Did you not read the 9.1 patch notes? There's a way to transfer soul ash in 9.1 to alts. Granted it's not 100% efficient but it exists so your soul ash doesn't just "rot" on your main.
FF14 has different systems and if you find yourself enjoying them more, perhaps then FF14 is the game for you instead of WoW.