You see just what you want to see. Jihan Wu might just mean no SegWit activation until fully tested and ready (in wallet as a feature to send coins using new SegWit transactions). It would make sence. And if no hard fork delivered as promised around July, miners can just merge BIP109 or some variation of this like with longer grace period + higher voting treshold as there is consensus between miners + market for this, so no big deal anyway.