The position of the IETF has usually been to ignore national laws
when making standards on the grounds that with 180+ different
sources it is impossible to do so.
In this particular case I don't think that the issue is being raised
in good faith. It is reasonable to ask Microsoft to clarify the
licensing terms, it is not reasonable to argue that the working
assumption should be that the terms offered will be unreasonable.
Bringing up the topic repeatedly is completely unreasonable.
As the chairs have pointed out, this is a matter for the IPR working
group.