> You'll likely never be in a situation where over-querying via a non-granular REST call will ever be an issue worth optimising around.

While I agree with your beginning sentence, the one I quoted doesn't sit well with me. It would be good to remember that not everybody has 100 Mbits fiber or 5G download speed.

We all saw the data on how milliseconds affect user retention then proceed to completely forget about it once building our apps.

I think we can do better.