I'm curious what makes you say this? I feel like I discover how most sufficiently complex apps work by googling, or youtube.
I'm also not convinced this makes traditional methods: walkthroughs, support videos, trainings etc impossible?
My friend just discovered coding agents (lol), and he's constantly finding new things it can do for him...
"Oh it can ssh into my raspberrypi and run the code to test it. Wow"
That was an emergent property of the cli coding agent that had no "traditional" discoverability.
A teacher that needs to know the kids that are struggling the most with a recent exam doesn't want to ask the AI 10 different ways, deal with hallucinations and frustrations, send tech support a ticket only to receive a response that the MCP doesn't support that yet - isn't going to be impressed.
They just want to see a menu of available reports, and if the one they want isn't there, move on to a different way of doing what they need.