I agree with you that schema has tremendous value. Let's store JSON everywhere and infer it on read, backfires in a big way. Even MongoDB added tooling to enforce a schema.

I just wish there was a better tooling to evolve schema. Blue/green deployments, schema as code (no manual up and down procedures), good backward compatibility story, shadow testing in production, etc.

The database still feels like a monolith and did not get the benefits of the microservice revolution.