Thank you for contacting Sitefinity support.
I am sorry to hear that you have had trouble with Sitefinity.
a) Updating all widgets, including custom, is implemented by design in Sitefinity.
b) I have reported backing up templates as feature request to Thunder team, who would discuss it's implementation and decide if it is possible.
In case you have any other concerns I would be glad to assist you. Thank you in advance.
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