Thread:Solara184/@comment-44117874-20200207113521/@comment-38439752-20200225160958

If they didn't count the tiers, there wouldn't be over 200 horses in the game. And to be fair, most of the commons are recoloured anyway, even as t4s. Brumby/Arabian/Black Forest, Lusitano/Lipizzaner/Morgan, and so on.

I guess they just wanted to get all of the horses they had ready out now, since people have been asking about those for a long time. Also this update fixed many of the other issues people have been complaining about, so that's probably why they decided to do it now.