When pinning an Analytics query to a dashboard, you should be able to set a refresh rate
In Azure Log Analytics, you can write a custom query and then pin it to a dashboard. But the data presented cannot be configured to refresh regularly. The data is set to refresh once an hour, which might as well be no refresh at all. The rate should be set to something similar to Live Tile refresh rates, or directly configurable so that dashboards will present Analytics data that is not stale.