While I regret Synadia decision to change the license I have to admit just reading the CNCF reponse was very very misleading.
Ok Synadia says they were not happy with the CNCF collaboration. In the end they were paying for this membership and their services.
So I went and looked at the various member benefits and it doesn't sound really attracting to me [0] The most valuable thing seems to be in their "landscape". They are basically selling brand promotion.
Then you probably have a lot of politics dominated by their Platinium members: Alibaba, Amazon, Apple, Boeing, IBM, Huawei, Microsoft, SAP, Oracle, etc.
CNCF doesn't work for the community, they work for their (Platinium) members. Synadia works for its investors and they decided to change course (regrettably).
The code under Apache License 2.0 is available on the internet, if it is valuable some people will fork and maintain it. But it is not gonna be the CNCF and its staff.