In that case there is little difference to just sharing a save file, which everybody can already do. If this is everything that the patent covers, then I’m against them having a patent for it. That idea is so generic and nothing somebody should be allowed to have control over
Pretty sure that it’s not possible. You can only download with an account or use another website hosting that mod.
But honestly, just use a throwaway email. That’s way less work than what you are trying to do