Yes, well... I would love to support Spriter's evolution, but I use Godot and Spriter 1 never received any support for it. My copy of Spriter lies dusting away somewhere on my drives. Never could use it, unfortunately.
And now I discover that yet again Godot is not going to be supported. What a disappointment. I don't understand how Godot, being a very popular engine now, is not supported. In particular seeing it is arguably one of the best (if not the most flexible) true native 2d game engines on the market today.
Unfortunately, it seems you have decided that you are not interested in the support of the ever increasing Godot community. And you'd have much less competition compared to Unity or Unreal (Spine).
I supported Spriter 1 back when it was first introduced. Not making the same mistake again.
Sorry to sound sour. I just think it is a missed opportunity. Godot would be a great match with this new version.