I'm an ATCO, though not in the London TMA.
If you can't make a safe go-around from an approach we NEED to know as soon as that becomes apparent.
If you tell me that you don't have enough fuel to do so I WILL submit an MOR. As I believe that the situation is potentially dangerous. It is for the MOR investigators to ascertain the how & why of what happened & whether the rules have been broken, or if not, whether they should be changed.
Assuming that you operated in accordance with your company's policy then it is not you, but that policy which has been MOR'd.
What has been the company's attitude & response to the MOR?