THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM *"AS IS"* WITHOUT WARRANTY OF ANY KIND
They have no obligations to provide documentation, binaries or anything beyond the source code.
I personally think this is a better option than migrating from an open source license to a source available and I would like more project adopt this approach from the beginning of their projects, to set people's expectation right.
Which would be very relevant if anyone were trying to sue them for this - which no one is.
The license establishes the limits of legal requirements and responsibilities. It doesn't shield you from criticisms and people being annoyed with you.
I personally think this is a better option than migrating from an open source license to a source available and I would like more project adopt this approach from the beginning of their projects, to set people's expectation right.