Midigator interview questions

There were 3 rounds of interviews.. recruiter told me that final round would be a 30 minutes behavioral kind of conversation and it was the same…but after final round they realized that I have limited experience in golang..I have told them the same before starting the interview process that I have good experience in node and python but limited experience in golang and they told me that it would be okay…not sure why they wasted my time…recruiter told me that they are looking for more golang experience…seriously…