You think lowly of a three-century timeframe for improvement, lol. Revan grew noticeably in that time by just leeching some things from Vitiate's mind 😬
Also, in the midst of that three hundred years, the Sith reclaimed Korriban and other Sith worlds in the galaxy, and the Sith secrets there would've been made available for Vitiate to study once again. We also know he had spies within the Jedi, so they might have brought things for him to study as well.
Originally posted by DarthAnt66
Well if Revan can ash Nyriss, they can ash Maul, yeah.
Don't you have Anakin over Revan in raw power? So technically, you reckon Anakin can incinerate Maul as well, if he had the right powers? 🙂
Or worse, that if he had mastery over Tutaminis, that he could successfully absorb Vitiate's Lightning? 😑