I have a Harmony Link remote and if Logitech's cloud ever goes down this device is useless. The nice thing when it does work is that harmony tech support is pretty fast in adding whatever features that may be missing into your account. For instance they setup my zone2 to work for my receiver. But of course the problem is if the cloud goes away I have a useless device.
I don't think the average user would care or even know if their router was connected into the cloud. Look at all of the routers out there installed by companies that still have WEP setup for wireless.
I also bet if people had any idea what QOS is and if it was a benefit to them, they might actually use it. But that's probably where people start to learn about other firmwares to try to fix their issues.