Can you elaborate why?
I believe you maybe conflating speed with comfort...what the OP is going for on long rides.
Lots of average guys on endurance geometry bikes with aerobars. Reason is some aerodynamic improvement but elbows supporting their torso which helps with less than ideal core strength on long rides.

No, they aren't as aerodyanamic as aero bars on a Tarmac or Dogma. That isn't the point. Many average guys with less than racer flexibility can still be helped aerodynamically on an endurance bike with aero bars.