I mean, I haven’t done any of the new Arathi stuff yet.
I was too busy running around as a purple bunny collecting chocolate from eggs. I got the magic carpet variant and the Easter chicken mount. It was glorious.
The .5 islands have always been a very small set of additional content to furnish cosmetics or a late season tide-over gameplay.
The original Horrific Visions were there as something to do between the end of the last raid and the beginning of Shadowlands pre-patch. I wasted a lot of that patch collecting llama mounts (they are adorable and I have them all). Honestly, those llamas were the best thing about that patch.
I am assuming this iteration will be much the same but weaker since it’s not the end of a .3 patch when power shenaniganry doesn’t matter anymore.