I'm on Shadowlands, and no one bought the damn mask. As for the mounts, they have been on my inventory since DECEMBER, and they were still not puttable on the GTN.
You are lying. Mounts have been sellable and Shadowlands had the Masks for sale for at least 3 million at one point.
No one is going to believe this outrageous garbage, why are you making it up? I just sold two mounts today.