Warren Buffet is currently overrated because he doesn't invest in a lot of tech stocks because he claims to not have a complete understanding of the business.If you look at his record from the 70s-90s, you will realize he is the greatest investor ever. We all have our strengths and weaknesses, don't judge a fish on its ability to fly.

I think its great that he doesn't invest that much into tech and is very public about it. It influences other people to not invest in every little thing that is popular if they don't understand the business mechanics behind it.