Some of those issues are also addressed/worked on by feminist groups, particularly the rape one. Almost every survivor counseling organization I know of provides services to men as well as women. I'd also characterize most of those groups as feminist. (In fact, it's the ones that don't provide services to men that I'd often characterize as not feminist and that get the most feminist criticism, such as the services offered by most universities).

My experience has been that the Men's Rights Movement's good parts are often what is basically non-radical feminist activism repackaged, and its bad parts are reprehensible. (Note: radical feminism is things like the SCUM manifesto; most feminism isn't particularly radical)

The article does make the important point that there aren't a lot of places for (straight) men to discuss cultural ideas of masculinity and its possible ill effects. (In my experience, gay men often have a better understanding of male dynamics than straight men, and there's more of a cultural discourse about masculinity in some parts of gay culture.)