"it makes you look like you have a specific agenda in mind when running the jam"
I do have a specific agenda here and it's very plainly stated. If people are offended by this statement I don't want them included. End of discussion.
The specification of tabletop only is because on itch jams always get a lot of video game submissions. Moderating that is easier if the rules are clear.
if you don't like the way the rules are stated, you're welcome to simply not take part.