Good grief, we know this is Slashdot so reading TFA is generally scoffed at, but at least read past the first sentence of a summary. The Subject of my post says it all. It is trivial to set up a proxy so that customer => Cloud service which can't be blocked => TOR.
You wrote that a proxies "aren't really necessary". I was responding to that. Good grief, indeed.
If you'd like to move the goalposts by claiming that the summary isn't want you wrote, that's fine. I'll respond to your claim that proxies are easy to set up. Yes, they are. And they're really easy to block too, if someone is motivated to do so. If they weren't difficult to block, there would be laws in place that would make them harder to set up.