How is continuous_pickup/continuous_drop_off forbid language interpreted? Should it be adjusted to explicitly allow values of `1`?

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Weston Shippy, Trillium

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Currently the restriction reads: "**Forbidden** if `stop_times.start_pickup_drop_off_window` or `stop_times.end_pickup_drop_off_window` are defined..."

Does this mean *any* presence of this field is forbidden if the above conditions are met, regardless of the specific value?

I can't think of why we would want to forbid an explicit value of "not available" when that's implicitly what is being stated by this restriction. Should it be changed to match the spirit of `stop_times.pickup_type/drop_off_type`? Like so:

"Any `continuous_pickup`/`continuous_drop_off` value other than `1` or empty is **forbidden** if `start_pickup_drop_off_window` or `end_pickup_drop_off_window` are defined..."