The jargon in the type world is a tad different from what's being used here, it bothers me immensely. E.g. a font (file, lead type, etc.) and a typeface (design) are two different things. Type design and typography aren't synonymous either.
I know it's an experiment but I doubt it's likely that the EULA states that the fonts can be manipulated, e.g. you need written consent of Grilli Type if you wish to do this. I'm unaware of the policy in other foundries.
Neat experiment but I don't really see a use for this.