That's right! There is no point in waiting for the official approval of the new RFC, which obviously will not change anything. I have been a contributor to this RFC for several years, and I can testify that every aspect imaginable has been thoroughly researched and agreed upon. Nothing new will definitely appear in the new RFC.
From a practical point of view, these two things are extremely important to have to support partitioning. It is better to implement limitations than throw them away.
Without them, this functionality will be of a very limited use in databases. We need to think about large tables – which means partitioning.