I have few notebooks and many sections, so this powertoy is not useful for me. Would you consider an extension, or for that matter another powertoy, with Favorite_Sections?
But I wonder about order of the items in the TOC. It seems to be by descebdubg Last Modified Date, This seems to me a poor choice as a default, many pages are updated from time to time, but the order in the generate TOC is fixed, and if you want to go by date, you can use Josh's tool.
A daring suggestion: How about leaving the order of pages unchanged ;)