I think your concerns are justified, Saliv. And to be frank, there have been more security issues with roblox than I can count, and that's just the ones I know about. But let me add some defense here, too.
It is actually a game. Granted, it looks like mostly default stuff with graphic swaps, and could probably be made in just a few hours(possibly minutes), it is still probably a legit submission. My kid plays roblox and has roblox studio, so I'm familiar with the scene. While you can make a game (rather an obby) in just a few minutes and call it done, the same could be said about rpgmaker. Like rpgmaker, most creations are going to be generic.
My kids played it and it looks mostly stock but still a legit submission, technically.