Are you sure people actually say that? This struck me as odd because it seems to be the total opposite of what people say. It seems virtually everyone stresses "soft skills" repeatedly.
But I have no proof of this so I just did a quick search of Google's 130 trillion pages to try and get a sense if people out there are really saying that soft skills are useless:
"soft skills are dead": 3 results (and 2 of them happen to be from you in this thread): https://www.google.com/search?q="soft+skills+are+dead"
"soft skills are useless": 7 results : https://www.google.com/search?q="soft+skills+are+useless"
"soft skills are worthless": 4 results : https://www.google.com/search?q="soft+skills+are+worthless"
"soft skills are in demand": 43000 results : https://www.google.com/search?q="soft+skills+are+in+demand"
"soft skills in demand": 94000 results : https://www.google.com/search?q="soft+skills+in+demand"
Also, on HN... In the top 3 threads with "soft skills" in the title, the comments all emphasize the importance of soft skills: https://hn.algolia.com/?query=soft%20skills&sort=byPopularit...