Airbnb Data Science interview questions

They first ask you to work on a home assignment. It took me about 8 hours to finish it. They reviewed and said I did very well on it and invited onsite. Onsite interviews are extremely easy and don't really test your knowledge of data science or machine learning. Everyone who watched the whole Andrew Ng course is already overqualified for the interview. After the onsite interview, I got a feedback that I don't have a product vision (there were no questions about it at all during the interview) and low modeling skills (so, why did they say I did well on home assignment if they think so?). My impression is that they use really outdated technologies like tfidf and logistic regression. Don't recommend to go there if you want to work on state of the art ML.