Looks like both changes made it in for maintenance today. All of the Wild Gladiator's armor pieces should now be available on the Conquest vendors, and there is no longer a 200-point Ashran restriction on the weekly Conquest cap.
So, slightly technical details here, but for those who are asking:
The issue with the Accolade trinkets is that there's actually just one item per primary stat (Strength, Agility, etc), which has a secondary stat randomly assigned when it's looted. We can't, for example, put the Int/Versatility trinket on a vendor, because that item doesn't actually exist -- there's just an Int trinket that can randomly have Versatility added to it.
This means we don't have a way to implement a non-random method to get them via hotfix. We'd need to add new versions of the trinkets to the game, and that requires a content patch. I don't know yet if that can happen in time for 6.2.1.