I would agree. I can't see retailers cutting prices anyway. If a retailer can sell a product at £20, the price will stay at £20 and they'll just make a little more profit. It will make a tiny difference with the total in places that price things excluding VAT, but then most buyers in those places claim the VAT back anyway so they'll just pay a little less and claim back a little less.
I suppose the idea is that, rather than making a big difference to a few people, the government wants to make a little difference to everyone.
I can imagine that there might be a rush to buy just before the rate goes back up again but I can't see anything else of note happening.