I get that sometimes it takes time to update the program, but so what? It's been months, and you're still saying "may decide". If the program thinks the files should be deleted, then when people complain, simply tell them that this is the case, instead of waffling on about it being a Windows problem and telling them not to use ccleaner's registry cleaner (let's not forget, you said " it's unwise to use a Registry Cleaner unless you are trying to fix a specific problem." - I view any junk in my registry to be "a specific problem" because ccleaner TELLS ME IT IS!). The fact that you haven't given us any definitive answer on this issue, and you're still using words like "may" indicates that this issue STILL hasn't been addressed either way, and you're just making excuses.
Get a proper and definitive answer to the question. I really don't want to hear "may decide" and other nonsense.