I used to be a very "analytics focused" product manager until I joined an enterprise software company that hardly uses them and is wildly successful.

We're succesful because we talk to our users about everything. I spend most of my time talking to customers and watching them use the software. We occasionally use analytics to help us validate hypotheses or assumptions, but that's always complimented with a full range of qualitative methods.

Analytics can help with observation, but it'll never give you the "why". In my experience only observation and a lot of conversations will get you there.