I don't care about the karvo, but they do hate sins. The Maya Purple to OCA decision is a huge indicator of this. The backslide decision also. I can go on.
Sins being bad before trans is not Warpportal's fault. Even the renewal EDP changes have nothing to do with WP, but you know that.
MayaP is in OCA because GR DR are in it too. Either you remove them all and only leave things like Angeling, Dark Illusion etc in OCA, or you put them all in. Cant have GR DR but no MayaP.
Backslide in woe would be retarded since is has no counterplay. The reason Snap isnt as broken as it could be is because Dispell and Absorb Spirit exist. Cant say the same for backslide. Therefore it has no place inside castles.