Black Mage

[zuzu-bq]

But in ARR ppl were not happy about that, often ppl asked SE to gave us the possibility to allow us to store 2 stacks of firestarter/thundercloud to avoid wasting procs.

ARR people were unhappy at Firestarter because of how late the proc happened back then, and not because of the randomness itself. And everyone loved Thundercloud because you could pretty much use it forever without ever worrying on Astral Fire. You can run back and search for old BLM posts, they are all about annoying MP ticks, late Firestarters (the practice of fireweaving and discussions about it), and MP pools for different Thunders hard cast usage.