Why do we need to handle that many POST requests? We only need to update the client and do a POST if and only if it would make a meaningful change to the remain

Why do we need to handle that many POST requests? We only need to update the client and do a POST if and only if it would make a meaningful change to the remaining time. If we're going to keep it up and running forever anyway and this is just a marketing gimmick, we can randomly reset the server side time every few minutes and do zero POST requests.