I understand your frustration maxed- out, however although the IR flight is quite intense, there are still aspects of the MEP test which is done VFR and not tested during an IR exam. For example, steep turns and visual circuits (single engine as well) with a single engine go around at ACA.
Because of these points you are not able to adequately show and pass those parts of the flight test in the simulator. Due to this the entire MEP will have to be done in the aircraft separate to the IR flight in the sim.
This has been the case before EASA as well however in the new rules, we do not believe they were made with specific scenarios in place like this one. One can see the logic in it for say a pilot who has not flown the privileges of a TR over the last year but maybe some more leeway can be used for this specific scenario like the wording of the transcripts above suggest. Lets just see how much one can take out of it through translation before the CAA say no!
It would be interesting to learn what your flight school tells you when you put this question to them. Please keep us posted.