Sure, but if you have to pass a single Contact ID to get events, then your issue is how many contacts you have. We’re pushing 300k. So maybe we could eke it out if we do this no more than once per day, and hopefully stay within the limit given the other systems using the API (Salesforce, ETL, Zoom, whatever).
I’d really rather have an ETL provider support this API, rather than allocate my team’s time to build and maintain it. At least one I spoke with explicitly said they don’t think they can support it because of this issue.