If I remember correctly, submissions just was disabled for demoversion. In full version submission-only fight are possible. Skill remapping and gain scores are coming in next versions, not working yet but are already in my to-do list
You do remember correctly. And yeah, the demo makes it look like its mostly about beating it out with a submission/sexfight only being an afterthought and not really a viable playstyle. Its great to read that it does have a submission only mode