**Participation**. Ben mentioned this up front. We'd need to make sure that a wide array of people can participate in decision-making; not just representatives of W3C member organisations.
(I think it's noteworthy that W3C members are not all tech companies. Lots of libraries, universities, Open Source foundations, and similar participants. See https://www.w3.org/membership/list/ ).
Keeping most of the work in the CG, and just using WG for limited doc editing, is probably a good idea here.