It is amazing to be able to build the entire schema for a project from within the ACF interface, without ever touching a piece of code. This is especially amazing in the context of block themes, static sites and MCP enabled AI workflows. A robust set of REST API endpoints would enable deeper Gutenberg integrations and more options for site schema configuration by non-WordPress tools like AI. Adding MCP functions on top of the REST API would make it possible to give a WordPress AI bot instructions such as "Create an event post type with all applicable fields" and the bot could generate an event Custom Post Type and fields for start and end dates, descriptions, venues, etc. Events are maybe not the best example because of the number of great existing solutions for them, but the predictable schema lends itself well to this example.