Earlier quoted context omitted.
> Everything about this screams, "We know exactly what we're doing, but we're going about it in such a way that we can claim plausible deniability." (Feel free to address literally any of the pre-emptive points I made in my post, rather than responding as if I didn't already make them.)
You could cut to the chase and point out what isn't open source. Also, if that source is available, you could point out which definition of open source you are going by. Oh, and please don't say "the standard definition", because that is definitely contested, even after all these years.
That's easy: Defold (the project linked here).
> Also, if that source is available, you could point out which definition of open source you are going by.
That's easy, too: I'm using the same definition that the Defold developers are using.