I see what you mean and (with this elaboration) agree.
I made a mistake for that specific quoted piece of my comment, I was meaning to say it was a political agenda that this Jam appeared to have. Now that you have explained that this is a piece of commentary you want to say in the Jam, the rule being put in place makes sense, it's just (without that context) feels slapped on.
For the specification of the tabletop submissions, I can see why now. I'm mostly a video game developer and I would expect that people would be able to differentiate a tabletop jam from a videogame jam, but of course it's convenient to lay it out like that.
Either way, thanks for your reply, sorry for making it look like I'm just shitting on something for no reason, I think this jam is really cool.