No comment on the firing of the security response teams, but isn't Servo pretty much a "finished proof of concept" since quite some time? Hasn't the techniques

No comment on the firing of the security response teams, but isn't Servo pretty much a "finished proof of concept" since quite some time? Hasn't the techniques it pioneered been integrated, as far as possible, into Firefox? When it began, the word was that Servo would be the next rendering engine. Some time later the message became that it was a "testing ground" whose lessons would be incorporated into Firefox but that it would never become a production ready engine by itself. If that is so, then essentially Mozilla have cut an R&D project. Whether that is still as useful to Firefox as it was in earlier years is something that only the core Firefox engineers can answers. Regardless one feels that they might kept Servo and let HR or marketing take the hit.