The biggest challenge I have is that setting up and configuring them is a mess. I'm pretty technical and I still find configuration confusing and brittle. Especially if auth is involved.

I work in a marketing team, I would love folks to be able to use Google's Analytics MCP [1]. The idea of getting people into Google Cloud, or setting up and sharing a file with service account credentials is an absolute nightmare.

I don't think these problems can't be solved, and if remote MCPs gain adoption that alone solves a lot of the issues, but the way most MCPs are packaged and shared currently leaves A LOT to be desired.

[1] https://github.com/googleanalytics/google-analytics-mcp