When Elon says "interventions" I assume he means "safety critical interventions", or cases where the car does significantly the wrong thing. Otherwise it doesn't really make sense to say fewer interventions but less smoothness.
The vast majority of my interventions are pretty minor things, typically not safety related, but annoying none the less. Some are smoothness related, some hesitancy / acceleration related (I guess you could call that "smoothness"), some are lane selection related, etc.
I do find 12.3.6 to be very smooth laterally, but quite terrible longitudinally (acceleration / braking).
The vast majority of my interventions are pretty minor things, typically not safety related, but annoying none the less. Some are smoothness related, some hesitancy / acceleration related (I guess you could call that "smoothness"), some are lane selection related, etc.
I do find 12.3.6 to be very smooth laterally, but quite terrible longitudinally (acceleration / braking).