Hope you all are wrong
We just started using cycle in all our tanks, fresh and marine. We've added it to the bio wheels in the tanks with them, and directly in the water in the tanks without. (We're on our second bottle - gotta a few tanks.)
Anyway, one thing we noticed was the tanks where we added it to the bio-wheel had a bacteria bloom the next day. I've still got it in the goldfish tank. We're sure it was the cycle, because that was the only thing common to those tanks. Could the bacteria bloom be further proof that what you are saying is right?