No one should be under any doubt. Jill Matheson, the national statistician, is consulting on changing the mathematical formula underpinning the venerable retail price index because the Office for National Statistics wants it changed. Consultations are not launched when experts think the status quo is fine.
At the heart of the issue is the realisation that the RPI formula is deficient and out-of-date. Continuing with the current method is the equivalent of Britain still thinking a 1970s Austin Allegro is cool, while the rest of the world is driving the latest Mini.