The guideline is intended to address exactly the issue you raise, which is the risk of inconsistency across institutions. Within institutions is, I suppose, also a possibility. One of the main drivers for us to issue it was to make it clear to the industry what the expectations were.
The guideline also contains some clarity around the expectation that people in the situation of receiving relief should not receive a less advantageous rate than otherwise. That, again, deals with the issue of prohibited behaviour—which is about taking advantage—being more explicit in this particular circumstance.