Trinkets are goofy as hell.
PvE trinkets tend to be absurd in terms of power, but in PvP you’re supposed to stick with the 2-piece PvP trinkets for defensive reasons. (You get a stamina boost for having 2 PvP trinkets equipped.)
PvE trinkets in the past have gone this route before, back in like WoD.
Humans had their old PvP “break out of stun” racial, so people would roll human and basically have an empty trinket slot they’d use for these “PvE” trinkets and bring them into PvP, giving them an edge.
PvE and PvP gear basically have to be kept segregated, otherwise PvP stuff might become really good for PvE and vice-versa.
I personally didn’t mind it too much as I like cross-pollination in content, but sometimes stuff is just blatantly broken.
Like legendary weapons obtained through PvE, when they are used in PvP are generally devastating.
Back in Wrath, if you saw someone with Shadowmourne on the enemy team, you knew you were in for a bad time lol.
PvE stuff if it isn’t nerfed, is generally miles ahead in terms of power, compared to PvP gear.
PvP gear tends to be high in stamina and defensive stats like versatility, allowing for longer fights.
PvE gear kinda throws a wrench into all of that, if people start mixing and matching pieces. (Usually trinkets and weapons.)
Game isn’t really balanced around people having both.
You’re supposed to be fully in PvP gear for PvP. That’s how they balance it.