The strategy on the newer transmissions is to dump timing for fraction of second between shifts to help the transmission live at high power levels
That's done primarily for shift feel. The newer transmissions have so much rotational inertia in them, if you don't manage torque during shifts it feels very odd- you get pushes through the driveline that are unnerving, it feels like extra acceleration through the gear, which also can upset the car. Pulling timing settles it out.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
