Let's remember that they also represent a good chunk of the interested parties here and, at the end of the day, standards should reflect what Industry and Society, at large, want them to be.The sector specific guys and gals don't want (any) change as it means they have to go through a revision process.
If you work in Automotive, Aerospace, Telecommunications, you should be aware of the implications (cost and otherwise) for your supply chain, whenever a significant change to a flown down QMS standard is effected. It creates disruption, friction and push back. As I said before, ISO runs the risk of alienating some very important stakeholders. The IATF, for example, did not hesitate to bypass the IAF accreditation process for the TS16949 certification scheme. If they strongly oppose the direction ISO 9001 is going, they could easily find another home for the 16949 document.
Sometimes it seems that the people working in some of the ISO TC's live in another planet. In my experience, the primary reason why organizations don't better integrate their individual management systems has much less to do with the structure of the ISO MSS documents and much more with the fact that the organizations manage the different disciplines in silos. The quality department does it's thing, the IT department does theirs, EHS plugs along, oblivious to the rest of the organization, etc...
You can have a set of very well aligned ISO MSS's (9001, 14001, 20000, 22000, 27001, 50001, etc...) but applying them in a "silo'ed" organization is not going to be any easier than with what we have now.