There was no misinterpretation. Did you miss what Centrox said about regional differences, which you seem to completely disregard if the regional difference does not happen to be one you subscribe to. The Cambridge Grammar of the English language is one authority on the English language. Many exist, and agreement doesn't always exist among them largely because language is fluid.
Take a look at this thread I found if it interests you: https://forum.wordreference.com/threads/would-you-mind-stopping-talking.1502769/
would you mind stopping talking?
I would certainly use this phrase. I'm from the North of England so perhaps it's a northern thing. It doesn't sound strange to me. It sounds pretty direct - it's not as polite as 'would you please stop talking?'
I understand that such a construction to many native speakers seems awkward, especially when it stands alone. People, however, often say awkward things, or more awkwardly than they would've, when speaking aloud and cannot edit their word choice. So while most native speakers may agree it sounds awkward, I'd bet that many have said these exact words together like this at some time in their lives, probably many times, without thinking too deeply about how awkward they were.
I don't know if you've noticed, but native speakers of English rarely use the word "also" at the end of their sentences, preferring it at the beginning. That does not mean there's never a time to put "also" at the end of a sentence; that it's always a bad decision to do so.
I'm happy to know that the option exists to word a sentence in the way I've shown, even if it was not "right" this time. Awareness of these things helps increase the fluency of a speaker of any language.