The article misses the point of MCP but he is not wrong that it was a mistake (in some ways)

The mistake of MCP was building it in such a way that it needed to be on a separate process from the API. The statefullness of MCP was such a massive detour for the industry that we will be cleaning up after it for years.

Now that MCP is stateless we can start building what is actually useful: extending API’s for agents.

When people ask me if they should do MCP today, I say absolutely. But because the Oauth protocol side of MCP is very good and is a net positive for all public API’s

This is not a dig at MCP, the original vision of MCP was much different from how the community used it.