Brickwork sealing not compliant with standards, minor defect

Hello,
we are currently building a single-family house in BW with a general contractor and the shell has just been erected.
During the inspection with our expert, it was noticed that the masonry waterproofing was not executed completely according to standards.



It should be implemented as shown in the upper picture, unfortunately the yellow marked area is missing. The membrane is therefore not wrapped around the strip foundation but only lies horizontally on it.

I have not yet spoken to the general contractor because I am not sure about the next steps.
What options do I have? Which ones are reasonable and proportionate?
Is this something where I should demand rectification of defects? Or can it be overlooked if everything else is correct? How critical is the missing part?

So far I am satisfied with the general contractor and have some respect/fear of disturbing the peace.

Has the facade already been started? I am quite sure that it has not been forgotten, but will be done later. It does not necessarily require a foil. Just google "Remmers 2k." Shortly before the facade work begins, a bitumen thick coating will certainly be applied.

That is definitely completed. Bitumen thick coating is actually still under the sheet. So everything is as it should be, apart from the fact that it was not laid/painted around the edge (as it looks in the lower picture).

Which ones are sensible and proportionate?

Is this something for which I should demand a remedy?

How critical is the absence?

Your questions should be answered by the expert...

During the inspection with our expert

... Or what did he say?

The expert will classify this missing sealing in the protocol as a major defect that must be remedied

With us, it was also not installed immediately. The reason given was that it could easily be damaged during the first additional work.