Mythic+ and Delve players can farm Hero track gear. Mythic+ players can get a maximum of 1 Mythic track piece a week, where this is kept from Delve players.
Raiders, however, can get Mythic track pieces during the week from raid, also a Mythic track piece in the vault, and very shortly additional Mythic track pieces from Dinars.
I was looking forward to Dinars, however if the system is going to be implemented to favor raiders so heavily, then the system for at least some of us is better left unimplemented as it creates an unfair advantage beyond its intended bad luck prevention. Mythic+ and Delve players have bad vault luck as well and are already at a disadvantage in acquiring mythic track gear.
We cannot even get mythic track drops, however both raid and mythic+ for example have bad luck in vault rolls too. Raid merely has an Added Chance at Bad Luck as every item that didn’t drop for you from the boss CAN drop in your vault.
I’d frankly take an extra chance at Bad Luck. Some is better than None.