I have asked myself how that event would have turned out, all things equal, except it being a b737-800. Would you fly at flaps up manoeuvre speed bug initially? Is that as "informative" as the airbus target bug that they had?
Boeing FCTM says
"flap retraction and extension schedules provide speeds that are close to minimum drag"
"Dual engine failure is a situation that demands prompt action regardless of altitude or airspeed. Accomplish memory items and establish the appropriate airspeed to immediately attempt a windmill restart." Not so helpful in above situation.
He(and all aboard) was one lucky dude! Daylight, cavok, great FO, ferry boats already had their engines on to make a crossing, nicely spaced bridges, no boats in the way...if birds hit a little sooner or a little later...