Fissure is one of the most talented main tanks in the league and got Seoul in the playoffs the last stage.
The PR answer was that he wasn't being benched due to attitude but because Marve1 was just a better tank for this meta. Take it with a grain of salt, but, I do think they've looked better as a team, in this meta, with this current lineup.
What they plan to do with them in the future remains to be seen.
I recall there were mentions of Marve1 being more heal-efficient than Fissure, whose resource intensive playstyle was easily exploited by other teams. I don't imagine it had anything to do with Fissure being bad or having attitude problems but more of a needed playstyle change from the MT position to succeed in game.
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