Okay...the top two publicly visible leaders in the space leaving in the same timeframe could mean something. Perhaps in this case it does not. I don't think either of us knows for sure. It does, however, pique my interest in what the group direction is now.
What of the decision to not replace Matt with a specific role or person? Is that not interesting?
And, again, I mentioned many other observations, not just Amit and Matt.
Edit: If the primary driver was lack of expertise in the ML direction, Uber seems an odd place to land, doesn't it?