Does it make sense that I have never seen EDAC errors?

I have a system with ECC RAM on an ASRock Rack X470D4U motherboard which I believe supports ECC. However, I've never seen `edac-util` report an error. This sytem also runs Prometheus' node_exporter, and in over a year I have never seen a nonzero value for `node_edac_correctable_errors_total` (or any other node_edac* counter for that matter).

Does it really make sense that my system has never seen an error in all this time? I thought that ECC RAM was still worth it, but if it's never seen a single error, I'm not so sure. Maybe something else is wrong and error correction is not working?