NocTel Insight does not perform or enable any modification (adding, deleting, updating) of data. It requests data that is present on service databases and presents it back to you in reports. Agents who have very high status durations for things like Available, Redirect Disable, etc. have neglected to manage their status correctly. Supervisors may have also not noticed this and corrected it as soon as they observe it.
Since NocTel does not manage agents in Flow directly, there is no possible way to remediate such status durations since there is usually no reliable timestamp at which to prune the long status duration to.