It slides nicely, I've got a set for it that drifts like it does in the video and all you need is wheel and throttle, no brakes, no e-brake, very little shifting. Floor it to go, lift off to slide
No! Never! Like I said, you can create setups with monumental lift off oversteer, there really is no need for the handbrake.
Back wheels are spinning freely in the video as well, so no handbrake there either