"The phenomenology involved in interpreting LHC data and predicting new phenomena to look for at that scale is a big deal these days, and string theory really isn't relevant to those questions."

I think "string theory is overrated" meme is mainly fueled by the fact that it "really isn't relevant to those questions". I got the impression that many string theorists claimed string theory to be relevant to those questions, and only changed position once it became clear that won't be the case.