The problem is the 'most promising option' is affected by hype and loud voices. Many of the string theory crowds made predictions that did not pan out at all and still did not acknowledge their mistakes. I think that's the problem. Sure there was a lot beautiful mathematics discovered, and it can be used in some other fields, but the acknowledgement of failure of string theory is needed, rather than trying to point here or there where some of the tools from ST could be used. (I am a physicist, but nowhere near the strings theory)