It is sadly true. You can see from the above how different interpretation can lead to differing, and equally viable, views about which is the correct answer. In the end you pays your money and takes your choice. Ask the FTO why they have chosen that answer.
The fault lies with the JAA Central Question Bank, which is not properly validated. The UK CAA do their best but what is clear and unambiguous to one man is often nothing like clear to another. As an example, a recent Ops Procedure question asked the candidates to identify that, during refuelling with passengers on board, smoking is not allowed. It was phrased as 'A no smoking ban must be introduced'. At least one candidate read that as a double negative and ticked another answer.