While I’m sure I’ve looked at that article a dozen times, my understanding, as well as your experience, is just the opposite.
Increasing MAD allows the total soil moisture to become lower before watering, and will definitely water more (in direct ratio to the MAD) when it does water, because it will make up that deficiency in one watering, and to increase water, the time will increase. And, given that the other factors remain the same, watering can occur slightly less often, because more is applied each time.
Assuming we’re right, how could no one have noticed this previously (I’m asking myself)?
(This assumes Management Allowed Depletion is the same as Allowed Depletion in the Rachio program)