No economic theory has ever been developed which solved the fundamental problems of economic cycle, or predicted the economic future with any kind of statistically significant accuracy beyond that of pure guesswork. For that reason any one who works in economic forecasting is about as credible as a witch doctor. If you talk to economists they will admit this privately: they don't publicly because they would stop getting paid.
In any case I clearly do not sound in any way right-wing so your comment makes no sense at all.
The problem is that the BoE (and any national bank) drives reality as much as it predicts.
So when they guesstimate that the rates will rise over a time period, or that inflation will behave a certain way, that moves the market in such a way to often make their predictions wrong.
There are several graphs out of the projected interest rates as set by the FED (i'm certain for the BoE too) - Now they predict what they are going to do in the future, as they are the ones to set the actual rates - Yet over the last 5 years, they haven't been right Once.