That's it, but I read it as being able to use it generally. I'm not aware of MS continuing to tie licenses to specific hardware. I know they tried it in the early Vista days, but I also know it wasn't the case for Win7 because I took my HDD out of one PC and installed it into another, completely different one, and used it for several months before reinstalling everything (took about half a dozen reboots to recognize and load all drivers, but was stable after that).
So, if they're saying you can do a full install via USB stick or DVD, I take that to mean you can install it anywhere as long as you have a license. The real trick is if they provide a new license key or if the one you got with your purchased copy of Win7/8/8.1 is what you use to license Win10.
Chris