The way this happened is just how a devoted conspiracy theorist, er, public relations professional, would have had it happen, isn’t it? The NFL avoids any criticism for being unwilling to draft a gay, but he’s only a 7th round pick so the Rams can cut him while legitimately claiming he just wasn’t that good and they have a lot of depth at DE anyway. They didn’t have to waste a pick that normally brings value. And, if he really is good enough to play in the NFL, they get a good player for 7th round money for their troubles. A number of other too-small, too-slow DL’s with less of a resume than Sam were drafted ahead of him, FWIW.
Why the Rams, though? They’re the closest to being a hometown team for him, and they’re used to cheering for him in Missouri already. This has got to be less of a story there than anywhere else.