The advanced settings in Sitefinity are covering wide area of features some of which require more than one setting to be modified in order to work. Providers are such example and automatic restarts are not possible at that time. For other features we are restarting the application if it is required.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items