Levers, calipers, housings and cables have all gotten better so perhaps we spend more time on the hoods because we can. Maybe traditional bike fitting is changing with the technology.
Carpal tunnel surgery forced me to be more careful and move into the drops anytime I sense there may be a sudden need for some strong braking, especially with single pivots.
I'm usually comfortable in the drops and like to be there. My back is probably the only part of my body that remains unaffected by age, the rest of me requires a constant supply of anti-inflammatories. Post ride whiskey helps too.