This reminds me of the 737 MAX. It was deliberately designed to have a flight profile very close to the original 737 so as not to require retraining pilots. Tha

This reminds me of the 737 MAX. It was deliberately designed to have a flight profile very close to the original 737 so as not to require retraining pilots. That worked adequately, but not good enough. (The MCAS system would have been different or even absent if pilot retraining was done anyway.) Basically, they tried this approach but didn't recognise they crossed the threshold where letting go of old flight characteristics makes sense.