Nice find! That predates my time here and my Wyze Cam ownership. I read through the links, and this seems to confirm my test experience, except that I did use a cellular connection:
I’m not sure why that topic is marked Wishlist > Probably Not, because it appears to have been granted. I’ll ask about that and about the Help Center article that also says the phone/tablet and camera must be on the same Wi-Fi network.
To be fair, I should note that my cameras are currently on a Cam Unlimited subscription. I don’t know if that matters or why it might, but I want to be clear that I have not personally tested this without a subscription.
Thanks for sharing that, @habib! 
You’re welcome, and thanks for asking good questions!