ING Lead Engineer interview questions

The hiring and interview process seems to be for namesake. I was given a programming challenge to be completed in 2-3 days. The feedback for this challenge was very positive and I was asked to attend a technical interview. I was not asked any question related to the challenge that I completed earlier. The interviewers seemed lacking technical expertise to ask any advanced level questions, which was expected, since this role was for a Lead Engineer. I was then asked to complete a programming exercise which I could finish in half an hour (should be acceptable). I was then asked a few more very general system design questions. All in all this interview went well. But, I was surprised when I got a feedback that I don't seem to code much off late. Laughable, since I had earlier given them a fully functional solution to the coding challenge. Also, I verified that my logic for the programming challenge(asked during interview) was correct! TL;DR 1) Interview selection seems pre-planned. Only interviewing for the sake. 2) Interviewers' quality is inferior; which also means they cannot judge a good candidate. 3) All in all a waste of candidate's time. 4) May be a good referral can help. 5) HR never gets back to you in time with feedback. You have to follow up.