I understand the logic. I do. I never felt it was malicious.
I felt it was a coding issue and I still feel that way.
I guess it boils down to the fact that so many classes are much greater than others. That when trying to level up the weak classes it feels much more grindy in PvP. When XP was available in the arena it allowed us to use weak classes without feeling punished for it build wise. I don’t expect you to change your mind about hero classes in the arena. But perhaps a compromise. After a successful arena run. Whatever class is the event hero class XP that week. The player will be awarded 16 xp towards that class? Otherwise a lot of work needs to be done to the hero classes.
I guess it’s just a matter of taste. My taste just so happens to be on the right side. 