Which investors? They have Google at their backs, why do they need to impress investors? My reading of this roll-out is that they're first to some kind of servi

Which investors? They have Google at their backs, why do they need to impress investors? My reading of this roll-out is that they're first to some kind of service, and they've been first to many other milestones. However, due to wanting to prevent an Uber situation at all costs, they are taking it slow and careful.