It hits a nerve when a programmer or designer either tries to fix something that isn't broken and ends up making it even worse (Such as web pages that try to implement smooth scrolling), or removes functionality for the sake of simplicity and it lowers usability. Yeah, in this case it was a bug, but let's not pretend it doesn't happen deliberately sometimes.
Whether it hits a nerve or not, there are more productive ways to express that you don't agree with an implementation. You acted like a bully and that's completely unacceptable.