Honestly this and many other problems would just be solved by bringing back PvP stats.
Increases the value of honor gear, reduces the power of high ilvl PvE gear, removes incentive for high rank PvE players to get PvP gear, and removes incentive for them to farm random bgs as they now longer need the honor to upgrade PvP pieces for use in PvE.
So I’m going to reiterate this again as players not doing organise group content still don’t need higher ilvls, but Blizzard just needs to adjust their design.
I’d rather see the problem actually be addressed rather than adding a bandaid (higher solo ilvl rewards) that also negatively impact the game in other ways.