By the way, I highly doubt ZOS will be able to do as you ask. The fact is that Steam ESO and regular ESO accounts were segregated in separate launchers as part of a contractual obligation with Valve.
Yes I am still having issues with this. Some day can you just make this game without this launcher or at least stop updating it? It's only used to launch a game, one that is server side so what is the
If the game will not launch after clicking Play in the launcher, or if the launcher gets stuck loading, there are a few troubleshooting steps below that may help besides running a repair.