As opposed to what? If there is an export-control problem (not likely), do you really expect SourceForge's TOS to protect you?
Why the hell does anyone even use SourceForge anymore? Their tools suck, the site is beyond slow and plastered with ads, and you have to play download roulette with their crappy 90s-era mirroring system. Plus you get crazy decrees like this from whatever's going on at the top. It's not like there aren't alternatives these days. Google Code is awesome by comparison.