Price blitz? Really?

This seems a bit off: Tesco, one of the country's biggest supermarket chains, is offering a "price blitz on entertainment and books". High prices are certainly an enemy to all Britons, but it seems in poor taste to use the word "blitz" to advertise discounts on Billy Elliot and MarioKart, especially when there are people alive who experienced and remember the German bombing campaigns on the UK. Compare Tesco's price blitz with the previously best known blitz:

Price Blitz

London Blitz

I don't know, maybe I'm just being a sensitive, emotional American. But I hope no American chains are offering in 60 years to fly a plane into prices.