While I won’t say if this is a “thing” yet, I will admit that I won’t bee surprised. Bees are such complex creatures not only because of each one’s physiology, but the very nature of the super-organism we know as the colony.
This describes sub-lethal effects that don’t get looked for in regular testing most of the time. Until a few years ago, even the EPA wasn’t thinking about sub-lethal effects on pesticides being submitted for use in the U.S. and didn’t include testing for it.
It certainly gives us something else to add to the discussion when discussing bee nutrition and environments.