If we are talking of a regular season dearth experienced in a 'regular' season, while taking no honey the entire season, the bees will most certainly adapt.
If we take the possibility of dearth in mind, thus leaving an extra amount of honey for such consideration of the bees needs, the bees will again, adapt.
If we take an excessive amount of honey and then feed, the bees they will still adapt.
If we were to practice beekeeping only, never taking any honey 'what so ever', becoming a beekeeper who keeps bees just for the sake and pleasure of beekeeping. The bees would produce 'more than plenty' of stores for their needs in most years, but even then intervention would need to be considered.
Unfortunately even these bees may have small chance at survive, at least 'for very long' without intervention. Small Hive Beetles should be a major concern and consideration, as well as other pests in many area of the globe these days. Unfortunately the golden days of beekeeping, with non-intervention beekeeping practices are not as golden, at least for now when considering ones location. Fortunately we have many 'well known' beekeepers and breeders globally who are 'striving' for a bee that requires non-intervention, yet are good honey producers, (with a good temperament).
Phillip