yeah - i think its a relatively light weight check to see if there are things that need to be done to the cache - the times are hardwired a bit further up the tree https://github.com/umbraco/Umbraco-CMS/blob/5bfab13dc5a268714aad2426a2b68ab5561a6407/src/Umbraco.Core/Configuration/Models/DatabaseServerMessengerSettings.cs