It is retarded enough that people after +15 pick FOTM specs for M+ runs and as a Warlock you find a group after 25 declines and after all of that you get a huge middle finger from Blizzard’s brilliant design!
You can do whatever dungeons you like if you’re focused on the vault as it pulls from every single dungeon loot table… If you want to target loot you need to ally with some friends and other people who don’t need that trinket, but can trade it if it drops and then farm the dungeon you need. The +6 ilvl is usually not that significant on any gear.