Ok, sorry to rain on the Campy love fest here…
No issues at all. We all know I am the Jehovah Witness of Campagnolo and we are having an all out Jihad on ShimaNO equipment…and Tullio is currently rolling in his grave as is stuck on a chicken rotisserie due to the current sell out to outboard bearings. That being said a crank set (like you said unless there are square “balls” in the bottom bracket) should not have any difference at all one from the other – presuming that they are of equal length and chain ring size…
BUT…we all know that Campy has soul and the bicycle gods smile upon the rider and give the rider super human strength.