I think the presence suggestion relates to what I would term natural presence.Which is impacted by the baffle size .Smaller baffled speakers have less output in the midrange which means the frequencies above that have to be attenuated to balance the frequency response.That is baffle step compensation.
It is arguably two wrongs trying to make a right.You tend to lose more than just efficiency.You lose natural presence and replace it with throttled presence and then rely on injecting more power to compensate [reconstitute if you like] . It is an imperfect solution.Like the sonic version of powdered milk!