Agents given the choice between natural language and structured queries abandoned NL within minutes

So, Saw an interesting finding shared by the team at Cala on LinkedIn that just shipped an MCP server with three ways for agents to access their knowledge graph: natural language queries, a structured query language, and direct entity/relationship traversal. They expected agents to default to natural language. That's the whole point of LLMs, right? Nope. Most agents abandoned natural language within minutes and switched to structured queries and graph traversal on their own. No prompting, no nudging. This actually makes sense when you think about it.