Yes, but not in intent. Semantic Web (which was web 3.0 before it got meshed into web3 apparently) was meant to open up internet data for new/novel applications and uses. The article appears to be alluding to that very thing via MCP.

While it does fall short of the implementation of the Semantic Web, in a way it makes it a possibility to fulfill its intent without the full buy-in of site owners. There still has to be some buy-in or allowance, otherwise it will be locked down in the near future as some comments are expecting.