" Boeing has the engineering data that can be programmed into the sims now"
That's the bulls..t of the century !!!! There is no way it can be introduced into sims - and one of the first reason is that no experimental test pilot, along with the manufacturers, will try those manoeuvers with airliner prototypes ! so how could you confirm the data ?
Already for fighter aircraft, it's always, by obligation, partial and uncomplete flight testing regarding loss of control and departures (look at the F15, which had to be sent back to a flight test program for spin testing something 20 years after its first flight !)
Coming from Boeing, we have been used to the worst in terms of communication (remember the Sonic Cruiser, or the flight test program of the 787 " to be run like an airline" but this time we reached the deepest point .. ! )