Maybe I just need more patience, but I took a look at some tools that have MCPs, and their "setup guide" on how to start using the MCP server really gave me brain damage. Is this really easier to work with?

For antiquated "enterprise" APIs that were already a mess of legacy cruft, yes. MCP forced vendors to reconsider the ergonomics of their interface.

What do you mean by this? It certainly sounds technical but it seems to not mean anything.

MCP has not smoothed over legacy cruft, and it is generally bad at exactly what you’re describing (many unintentionally coupled APIs with unintentional side effects). These require near deterministic trajectories and you’d be better off creating a consumer with a series of well known good patterns with useful results.

If you take it a step further you may allow for a common language and keyspace of these well known results and employ dynamic solvers that are entirely agnostic. LLMs have made creating these much easier!