For context, I'm not trying to claim it was bigger. I don't think you were trying to say that, but just so there's no misunderstandings.

Trump has been elected precisely because he's not a focus-group-groomed super-careful politician who never says anything concrete. He was elected as a "real person" who, as a business magnate, should be able to apply his knowledge of negotiation and wealth accumulation to the nation at large.

As such, there are going to be jarring incidents like this for those of us who are used to groomed politicians, where Trump says something off-hand and it turns out to be inaccurate. I think that's fine, as a non-politician he's going to make mistakes, but it's also an asset (IMO) to be able to signal intent with concrete statements, or to be able to make initial statements and then revise them when more facts come to light. The characteristic that made him slip up on the inaug. crowd size is the same characteristic that has led to him fulfilling campaign promises at record speed. I think it's a good trade-off.