Its certainly true that you fight how you train, and this can often be a big disadvantage, prompting unrealistic responses from people in certain situations.
Although I am new to aikido I feel that it compares quite well to other arts in this specific area, concentrating more on a feel or attitude when in a confrontation than relying on specific techniques (at least it seems this way when I watch a good aikidoka). I guess that most martial artists achieve this sort of state when they reach a high level, but I think it is good that this is actively encouraged in aikido.
I personally come from a judo background and freely admit that I haven't had the revelation yet. My mind is not "as smooth as a polished mirror" or whatever its supposed to be...I know it would be hard for me to resist turning any fight I was in into a grappling match, even though this is rarely a good response.