It is instructive to look at where monopods are most frequently used: sporting events and hunting of wild animals. In all these cases, it is not a question of "how many stops" a monopod can provide. It is simply a matter of increasing the rate of goalkeeper shooting.
Competitive sports (soccer, football, etc.)
The monopods are everywhere on the fringe of professional football (international, American, etc.). For sports shooters, a fast shutter speed is needed to capture the shot because the subject is moving fast. In general, people like perfectly captured moments in time for this type of sporty photos, without blurry movement. There are exceptions where the blur of movement in the background is desirable, but those shots are rare and tend to be understood as more artistic than the typical sports report.
Sports photographers should be able to move and move around with each other, so tripods are unwieldy, impractical and, when they are around other inconsiderate sports photographers. But when they try to capture events across the field, they need to wear their longer lenses, and those lenses are heavy. So stability is required. The photographer might Kneel and use your knee to support the elbow to provide some stability, but that limits them to shoot from a low position and also reduces their mobility. A monopod allows you to shoot comfortably from a standing position and the ability to move at any time. Even though a monopod is a compromise tool, it turns out to be the best tool for this shooting situation.
Distances are much greater in autosport, so there is more dependence on telephoto lenses than football / stadium / arena sports. But there is an additional element that is not present in team / stadium / arena sports: controlled motion blur is really desirable. Very fast shutter speed in the performance of car racing. boring Shooting, where the complete movement of the cars stops: the wheels do not seem to be turning. Apart from perhaps a heavily loaded front corner suspension when the car brakes hard in a corner, with a fast shutter speed the cars seem to be static and parked on the asphalt, instead of dynamic.
Therefore, autoport photographers reduce the shutter speed, maybe as low as, s, depending on the speed of the cars from the point of view of the photographer, the focal length, etc. But that is not enough, because the whole car will be blurred. The photographer also has to Move the camera to follow the movement of the car.. This requires a lot of practice, and even when it is done by experienced professionals, it results in many shots below normal (unusable). This shot is only really effective for a panoramic shot, which turns out to be perfect for a monopod: the monopod does not restrict the pan axis (the so-called yaw axis) at all, while eliminating or reducing the other axes of movement. .
By the way, this is also the reason why most of the lenses with tripod mount and image stabilization have 3 IS modes: off; full on; and tripod mode, which means that the IS ignores the turn / turn movement in its stabilization. Not specifically for Motor sport, but for tracking subjects that move laterally with a telephoto lens.
This is very similar to the competitive sports situation, but often at much longer distances, similar to motor sports. In this case, the compatibility of the camera is chosen depending on the particular subject that you want to track. Birdwatchers often sit in one place or move infrequently and slowly, so a tripod is desirable for stability and to help carry the load of heavy supertelephoto lenses. Another game may require greater mobility of the photographer, so the hassle of moving and setting up a tripod would constantly justify using a monopod instead.