I am partially in agreement with you. However, I think the speed limit is not the issue. At any given posted speed limit, bicycles are more maneuverable than a car. However if you view this situation in the tailgating perspective, then it would be hard to find anyone to argue with it.

The issue of tailgating among cyclists doesn't often get spoken about, but it is a practice best kept for experienced riders in racing contexts.

Tailgaiting cyclists, at any speed, are inviting trouble.