I think it can be useful to criticize people who are overly attached to a celebrity’s relationship. Some people treat their relationship like it exist for their own comfort and entertainment. Like they are entitled to it in some way. This type of attachment and speculation can make someone real uncomfortable (Joe also expressed this in an interview). Tabloid articles about celeb couples also only exist because there’s a huge market for them. So, even though individually these behaviors might not have an impact on anyone, collectively it can be harmful. Criticism isn’t gonna make them go away, but it’s still better than encouraging it further or treating it as something perfectly normal and harmless.