Excerpts from that article, with commentary courtesy of me:
"Draconian laws have been passed enabling the regime to arrest anyone for anything said online." <= There's a saying in Russia: "The severity of the law is compensated by the optionality of it's application". I doubt that this will affect anyone outside of the people acting as mass-media; BTW, one of the most popular social-network accounts in my country is a) pro-communist and b) anti-Putin. It's still not closed. Do the math.
"The regime has invested in extensive surveillance technologies, including ones that allow it to rewrite foreign websites when seen on Russian computers." <= This looks like a serious case of [citation needed], because a) I've never heard of these things here and b) Isn't that already a world-wide practice? I know that Google alters the content of the search pages based on your physical location.
"they fear Facebook, Skype and Twitter will soon be banned." <= This will never happen as long as Medvedev (the prime minister of Russia) and the governmental offical keep using social networks to troll foreigners.
"Moscow is well aware that among the country’s bestselling novels is a historical fantasy of a Poland that teamed up with Nazi Germany to conquer the Soviet Union. Nor had it gone amiss in Moscow that Sikorski himself has praised the novel, on more than one occasion." <= So apparently the Sikorski is evil enough to consider allying with Nazi Germany just to conquer Soviet Union, presumably with enacting Generalplan Ost and killing more than 100 million Russians, as something worthy of praise? Just - what?
"But to hold down this enormous territory would require a force of 200,000 to 300,000 troops and a 10-year commitment. And they could never sustain it without permanent, national mobilization.” <= He doesn't understand how little people out there actually care about who owns their land. Just look at the amount of forces that are currently holding the Donbass territory, pretty much with zero partisan attacks. Only the Western parts of Ukraine can possibly offer any kind of that resistance, and you'll be a fool to believe that Russians after 10 years of suppressing Chechnya's rebellions have not learned how to deal with indigenous population.
Anyway, this is sorely missing a point that there is only one Crimea, and one cannot simply repeat it. Too many circumstances were for us, and too little - against. Also, the two main proponent of this idea, Sikorski and Bildt are both ex-foreign ministers. I wonder why...