It's not, in my experience. However I do have a late 2016 model. But never had an issue with braking on bumps personally, nor had the ABS kick in either - hopefully it will stay that way!Yeah I never saw that video. My guess is it was removed.
My SO will not let me buy an older gen Leaf after hearing about this so, it has ready affected me in one way lol.
A braking system should not be affected by a bumpy road at any rate
The car does feel a lot heavier than a fiesta though. Mainly because it is.