Yup - the people who insist on this sort of activity will tell you that this sort of thing is illegal and you might be arrested by the Air Police on arrival. I believe it is due to a lack of confidence. The only real explanation for their reluctance to delete superfluous waypoints is that they'd like them to remain in the FMS "Just in case." My personal preference is to have a what I'm most likely to do punched into the box. If ATC add extra waypoints, we'll put those in on an "as and when basis".