" gay game mechanics" (my emphasis)
Using the word "gay" as a synonym for "bad" isn't nice. I know it's common, but that doesn't excuse it, and you probably wouldn't use the descriptor for another minority group in the same way. Please consider not using the word gay this way. Thanks!
You guys have a massive cultural blind-spot when it comes to this stuff. It's incredible.
Both explanations project our own viewpoints onto these people - there's nothing obvious about either. The only thing that's "obvious" here is that it seems, assuming the men have longer ring fingers thing held true back then, that the paintings were done by women.