When I first started with an Airline on the B737 it was a matter of pride to be able to keep the speed on till late as possible , flap on schedule and thrust up and stable at 500’. Easiest way to get down was 320 knots and speed brake. Then hold your nerve. As long as your below profile everything is sweet. Today impossible. 250 knots below 10,000 and other even more restrictive company limits killed it. Obvious advantage is no more pesky QAR squawks but major, major downside nobody under the age of 40 has any idea of what the aircraft can do. Maybe not an issue if all you want to do is keep line flying nice and simple but a real problem when a crew finds themselves outside the envelope. I’ve seen perfectly competent crew hit the tilt switch when taken outside their comfort zone. Not their faulty , they’ve just never been allowed to experience it. But thats the brave new world.......