I know EXACTLY what you're experiencing, and yes, the smooth shifting in the 20-40mph range should get better over time. However, coasting or applying light brakes approaching a stop around 40/45mph is absolutely HORRIBLE!! I feel the brakes get squishy when the trans is downshifting (lasts well over 1 second, thanks dog clutch) and then they stiffen and almost make it feel like I'm hammering the brakes to the floor. I have learned to feather the brake pedal during these occurrences, making it less drastic, and even apply the brakes later and stronger than I usually would to "curb" the surging. I have tried everything, paddle shifting, S mode, and Eco mode to no avail. Dealer says everything is "functioning within Honda specs" - I've had it in multiple shops, multiple times. Seems like we have to adapt to the transmission, as opposed to the transmission adapting to our driving. This has had me back in the market for a different vehicle for the past 6 months, major bummer since I love EVERYTHING else about the PP. I just can't seem to get over this driving flaw.
2020 Elite with 19k miles.