People said the same thing about "APIs" 10-15 years ago when they were a craze. Everything had to be an API! Doesn't matter whether it made sense to not. It's going to change the world! We're going to have San Francisco events with microbrews for APIs! Everyone's going to publish API frameworks! Let me make api-blog-blog.blogger.blog!
Blah. Bay Area Tech regularly goes through these bursts of baseless enthusiasm for rehashes of existing technology. Is MCP useful? Yeah, probably. Is the current froth based on anything but SF-scene self-licking-ice-cream-code social cred? No.