I would strongly argue for the Hand Tool to be "unlocked" from whatever algorithm is deciding to move the working area wildly to a different part of the screen, when you're specifically trying to drag it - using a hand.
Fighting against this constantly -- our focus is at the center of the screen, not the bottom. It really feels weird trying to predict where things will fly to, which is honestly extremely disruptive almost constantly, and Reaper is my daily DAW since 2009.