Behaviour of exceedent workers on a resource spot
With the reduced gatherer capacity hunting on long distance with multiple cavalry make most of them returning without anything to the depot and stay there.
For example: 5 javelinists hunting an isolated elephant. The elephant can be gathered by 2 workers. Once killed, the 5 cav tries to gather, the first 2 start it while the 3 other get back to the depot and stay there (because there aren't any similar resource near).
If the units stay by the resources, they would be able to gather from it once the first ones are leaving. It is ok for long distances because of the long idle time. For short distances the spot may be saturated very quickly and it may be difficult to spot idle workers.