Xelvic,
I know that you haven't been on the board long so you wouldn't know. There are several LEOs on this forum and I think that you'll find that most, if not all, of us have the utmost respect for these guys and LEOs in general. Just as in all walks of life, there are good guys and bad guys. It's the bad cops that can give the good ones a bad name from time to time.
That said, LEOs are held to a higher standard than the general population and when they make a mistake, as the cop did in this thread, a big deal is often made of it. This cop could have very easily killed the guy on the bike through his carelessness.