i see. as long as i can download Software that is made available for free for students its completely legal to do so and use them commercially as a non-student, after all its freely downloadable.
good thing you explained how copyright works legally, almost spend my money unnecessarily.
Yes, as of now, you can do exactly what you assume that Roblox did. How is this still surprising to people?
COPYright becomes relevant once you COPY something. As in, give it to a third party. I don't see any third party involved here. The download itself is not subject to copyright - licensing terms may or may not apply - and just because the license text says something doesn't mean it holds up in court.