I think you might be surprised where it ends up this season with the buff it got…
Teleport resets from the DMO bubble have no cooldown, not even that short 0.5s cooldown that Aether Walker and Firebird’s have. It instantly resets when you enter a bubble.
DMO teleport reset working with Primus wouldn’t give it mobility to rival Firebird’s… it would give it mobility to rival an infinite dash Raiment 4p monk. It would be SOOOO much faster than Firebird’s/Aether Walker.
Don’t get me wrong, I’d love to see it. But it’s not going to happen, at least not with the current DMO teleport reset mechanics. If they decided to implement that change (DMO teleport reset working with Primus auto bubble), they would almost certainly add on the Aether Walker/Firebird’s 0.5sec cooldown to DMO teleports as well.