I've long suspected the logic behind this argument. In the US, where you have a consumer driven economy, do people really give a damn, or even notice, that prices have fallen by 1% in a given year? I buy consumables because I need them. I laptop because I need it. I buy a phone because I want it. I don't care if the same phone will be $3 less next year. Of course, it could be argued that in the aggregate deflation could have an effect, but I would guess that it is the kind of effect that is very difficult to tease out from other factors.
I have an economic theory: If annual deflation/inflation is within the range of [-2%, 2%], no one gives a measurable shit.