I think the idea sounds pretty interesting for an event or living story chapter. But for a permanent implemented feature, I don’t know…
I can see some problems for those world events like Tequatl or Jormag which can’t be done by 5 people. Even if you were to cleanse most of it you can’t guarantee to cleanse everyone as aoe condition cleansing only hits 5 people too and if one remains contagious he would infect all other players of that race again. Maybe you could implement a buff that makes you immune to disease for a duration of time after being cleansed.
And another problem might be that players who just want to level up their characters or are new don’t use condition cleansing in normal map exploration so they’d die of disease as they can’t switch skills while infected or are forced to sacrifice some other skill for condition cleansing as traits are no option most of the time.
Otherwise i think that it is a pretty exciting idea and definitely worth trying
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