[hobofan]

I'm not disputing that Meta is doing build-time query->query ID replacement. I'm disputing the that they are doing that(/have to do that) because it's the only way to satisfy security requirements.

It makes sense for many more reasons to do that, e.g. to validate/automatically optimize your database schema and indices. Especially if your base database is quite schemaless (such as the TAO system, which they used for a long time), that can be crucial for performance.