Although your post was not absolutely clear at first, I see what your question is. It is my belief that the captain who flies at Vy instead of V2 on a normal departure with no failures to acceleration altitude is CORRECT. Your philosophy is that since engine out is based on V2, you should maintain V2 on every normal take-off until you have reached your normal acceleration altitude, just in case you do have an engine failure, and have to revert to the engine out procedure. His explanation is also logical.