I am not sure what to make of this devils advocate comment. Are you just throwing opposites at the wall? I genuinely don't know how to interpret the query about attention span?

Are you suggesting that a lower attention span has no impact? I don't know how I would learn things if my attention span was shit, or even sit with difficult problems or emotions and resolve them. Even just general productivity, which, sure there are some arguments about good vs bad productivity, but in general, any form of productivity will benefit from better attention span I think?