I mean, preferably, your subscription-based service would continue to provide content to all players in order to keep them subscribed. If Blizz isn’t interested in that, that’s their problem.
This seems like a cop-out. With this argument, you could essentially give Blizz the benefit of the doubt on any negative change they made from PTR to live: “Well, I guess they always intended it this way from the get-go.” In regards to this specific change, however, I think you’re probably correct. I think whoever typed in the achievement text just messed up in being too vague in their wording. Either way, I’d expect them to at least own up to it in one way or another rather than just fixing it a week before launch and trying to minimize said mistake’s implications (besides, what’s the worst thing that could happen in them giving the general playerbase more content).
Once again, I cannot stress enough that it wasn’t just “another thing” in the PTR. It was incredibly coreographed (either intentionally or non-intentionally) to be a community-wide piece of content for this final season. The community voted on the mount early on in the xpac and of all the season 4 content announcements, it was seemingly the only major piece of content aimed at the casual crowd. There were people who continued their subs for it rather than just waiting for Dragonflight pre-patch.
I don’t know what more can be said on this topic. The mount was a real easy thing to deliver the playerbase as a general piece of content and fun while we all hunker down for Dragonflight to roll around. Blizz was accidentially misleading on the subject and could very easily just make it obtainable on LFR (both for the sake of maintaining subs as well as soothing hurt feelings). If they choose not to, they’re practically doing so in the name of a very rigid and old mentality which many had hoped would dissolve given Blizz’s vows to change their ways of thinking. Doing it would not hurt or deprive upper-level players of anything, only give lower level players something to do till Dragonflight prepatch.