The driver used to have manual control of the throttle (yes, I know, it has a different proper name..
@s8film40, I need you here lol...) which allowed them to shift into 5 power increments, neutral (coast), and 4 braking increments. They had so much more control over the speed and control of the train which allowed them to gently bring the train to a stop... They could bring the train down from neutral to b1 without much jerkiness while on the other hand, the Thales system probably jolts the train down into b2 or 3 immediately... Plus, when entering and exiting stations, for some reason, the Thales system lets the train speed up to about 10 mph and then shifts into neutral which makes for a very jerky ride.... With automation, I'm assuming that they can program it to give a very smooth ride similar to manual control.. I'm just not sure why they haven't yet....