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.
Til you can download something without copying said something.
Wouldve been great to know for people that have been found guilty after downloading illegal and unlicensed content.
Fyi, the nation you mentioned (Germany) adheres to a much stricter concept called Urheberrecht. Under this regulation, you're actually in even more legal trouble. Though Roblox ain't German, so kinda irrelevant, admittedly