Thank you ! Seeing the quality of your project i can only imagine the game you would have delivered with your team :o (awesome art, theme and concept btw).
I can only understand the reluctance to download unknown content on your computer, but i can give you my word there are nothing fishy in my game folders. (I made my game on game maker engine, maybe it could explain somehow the unusual difficulties with your antivirus ?).
It is my first jam so i looked for a way to try executable projects like mine without risks and found the existance of sanboxes (was also recommanded virtual machines but they seem more difficult to use). I don't know what it is worth but could be helpfull to take a look (if you are not already aware of all those things).