So you acknowledge that it is an issue of PvP players not wanting to do PvE and PvE not wanting to do PvP for the best rewards but some how turn it into a hardcore player problem? Blizzard his tried multiple times over the years to try and solve the problem of PvE item levels in PvP. This isn't about mandatory grinds but so much about balance of rewards and what is easier to get.
It was no different then when Blizzard first introduced Arena and used the term "Welfare epics" to reference the effect it had. Because it was easy to obtain gear then other parts of the game at the time. This isn't a new issue. Stop trying to pin it on the current group to hate.