What he says matches to reality: that regime change isn't possible with an air war. Thus even if you don't listen to him, we know from prior experience that regime change is highly improbable. Every person educated about these things knows that.
If troops get deployed, it will no longer be an air war. Part of keeping it an air war is to achieve the original objectives, and getting Iran to think that troops are coming is a way to increase the probability of achieving those objectives. If you don't know how war, or game theory, works, why are you commenting on it?
