It depends on what exact change in question is; I haven’t fully followed the discussion so far. Changing the process description to better match what is currently done in practice most of the time should be fine. Changing the process itself may be acceptable for small and uncontroversial things, but generally requires an RFC.
The RFC process currently has no real decision mechanism for controversial topics, and this is a difficult issue to solve. See Improving our RFC process where it has been discussed before. Honestly this is a topic that probably requires a lot more discussion before even making it into an RFC.