Three clicks? That was far more. Seven is the average requirement for MOT. Realistically you should check the brake pads and brake disks, the pistons must be working correctly too. The handbrake uses the Calipers pads and disks. The rear wheels should be raised to ensure the wheel rotates freely after adjusting.
The reason why that seesaw bracket is sitting to one side is because the right hand side cable is stretched. The left side caliper will lock more than the right side. New handbrake cable will bring that back to normal and sit even
if you both weren't sitting on the seats,the console lifts up past the seats easier,you sitting on the seats flatens down and pushes the seat edges towards each other,narrowing the gap the console has to get out,good video though mate,thanks for the warning about air bag control panel