This isn’t a theme, though; it’s a suite.
If someone wants to develop a restaurant theme, great, however, adding plugin functionality (ie, CPTs) is the wrong way every time. Instead, (such) theme developers need to realize that they’re not developing themes, they’re developing a suite of products designed to work together and they should just call it what it is. Calling it a theme does a disservice to the end-user who probably doesn’t realize anything about theme-lock, the reasons why this is a bad idea, or that they’ll possibly be stuck paying someone later to undo the damage.