It sounds as though you are saying that Aikido training is not an environment conducive to actually knowing whether or not one's Aikido is martially effective; it is actually conducive to FOOLING oneself into believing that ineffective Aikido is effective.
So how can you make your second assertion, that "Aikido is martially effective?" You've admitted that you have no way of knowing this.
That was sloppy wording, I admit; the martial art of Aikido is effective. I endeavour to make my
Aikido effective too.
As to knowing, certain things are obviously such, that continually allowing them in the training invalidates the whole thing, these are exposing yourself to counters, depending on the uke to hold on, etc... . There is more to be said on this but first, will you provide us with the self-correcting procedures you use in your training? I assume you have something to this effect since you stated that Aikido is self correcting.