Not sure where you're getting "promised" from when I never used that word. I'm referencing what Holly said when they announced the 2023 roadmap:
They've lived up to that goal thus far, so I'm going to react when they choose to step away from a PTR altogether right after we got a patch that came in very hot, particularly with content that was untested on the PTR.Our goal for Dragonflight is that there should always be something right around the corner, with a new update hitting our test realms shortly after the last one is live and in your hands.