Before production use the implementation is evaluated for connectivity, protection of communications (verified by monitoring traffic or checking logs rather than assumed), authentication, the range of applications that will be used over remote access, management, logging, performance, and the security of the implementation itself. Every component is brought up to the current patch level and configured to sound practice; implementers review each remote access setting's default, change those that fall short of the security requirements, and confirm the solution cannot revert to defaults for the sake of interoperability or anything else.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.