There is no reason to do a aeros rating other than for it's own sake.
Respectfully, Horatio, I think that's nonsense. Aerobatics provide a very large extension of a pilot's overall awareness and ability with respect to an aircraft's envelope. Exposure to aerobatics vividly sharpens one's awareness about the aircraft's total energy, manoeuvre capability, acceleration (and decel!) characteristics. It vastly increases pilot ability around the edges of the aircraft's Vn diagram and does wonders for confidence.
It's similar to quality stall and spin training. Pilots should be familiar and CONFIDENT in all areas of the aircraft's performance. We shouldn't only feel confident to operate in the centre of what the aeroplane is capable of doing. Aeros training delivers that, and it's also bloody good fun. If aeros isn't your thing, at least some quality upset (UPRT) exposure in something aerobatic should be a minimum.
All the above personal opinion only.
