Final release that was out today, is the same as the 10240 that has been out for awhile now. It just gets ZDP Zero Day Patches, the existing 10240 people have already gotten these ZDPs. And I have heard nothing about this "patch" you speak of or any indication that MS is changing course on allowing Home/Pro to be able to cherry pick updates.
WIndows 10 doesn't pop up as an "Update". If you run Windows Update on Windows 7, 8.0 or 8.1, two things happen. One, Windows Update tells you Windows 10 is ready to install. at which time you have to press Install. Then you get a second prompt once it is done prepping, where you have to accept the license agreement. None of that is done automatically so there is no way it installed without user input.
Nope, the option in System Properties does not work anymore. You have to use the Tool to block them from the MS KB Article. If you don't do that they will auto install.
99% of all consumer systems bought at any online retailer/big box store is running the Home edition of the OS. That's a pretty ignorant statement, especially knowing myself the differences between Home and Pro editions of the OS.