Person you were responding to here. You do have a solid point/question. To be completely honest: my original thinking was that for once, I am going to go with the flow on something like this. I often fight inertia, but this felt like a bad thing to do it on.

Now, I realize that the best argument for MCP vs function calls in my case, is that I want to allow external products/agents/chatbots to interface with my app. MCP is that standard. I will implement very carefully, but that's what I need to do.