So let me get this straight: Mixpanel is advising me that page views are dead, engagement is all that matters ... and their chosen medium for this message permits no measurement of engagement whatsoever.

Their web2.0 metrics are superior to traditional measures, but a one-way communications medium that has been popular for over five hundred years is apparently superior to any type of online advertising, so much so that you don't even care about the metrics.

This is the worst message/medium mismatch I could imagine.