Given their anti-trust struggles, if Google for some reason dominates AI, they'd not want people to bring up anti-competitive behavior as a reason for that. Adopting open standards, especially open standards conceived outside Google is good for everyone including Google. They're well placed - from research to hardware to software and data.
They'll also want the industry to rapidly move forward and connect data to AI. MCP has momemtum.
To escape the anti-trust struggles, they'll need to provide MCP servers (meaning provide callable tools). Stopping at providing MCP client (the chatbot that connects to MCP servers) isn't enough.
I'll believe in Google not actively being anti-competitive when I (a paying customer) can access/modify my gmail, google contacts, google sheets, plan routes in google maps, ... from my local llm chatbot using mcp.