Stumpokapow
listen to the mad man
This chap's tweets were more than just rude; they potentially harmed the marketability of a major product of Microsoft's, having someone say "you live in the wrong country, deal with it" when he should be getting people to yearn for the (yet-unannounced) product instead. These tweets were covered by so many sites and forums that it has probably had a very real effect on consumers' desires to purchase the next XBox. GAF alone was full of people changing their buying preferences to the PS4 instead.
I think he got fired, forced to quit, or suggested to quit because he discussed an unannounced product in a way that brought negative attention to the company he worked for. I don't think being more polite would have changed the fact that this discussion was not a wise one.
But I think the reason why he got quite so much attention is because he was venting in a rude way, and people who read it felt personally defensive and insulted by what he was saying, and so it spread and snowballed. I think if he had tweeted something like "Do people really get much downtime these days? My internet access is pretty much 100%" or "It seems to me like giving up a little reliability is an acceptable sacrifice for some of the stuff cutting-edge tech enables", he'd still have some people disagreeing, but he'd have the moral high ground because it would be a lot less rude and flippant to other human beings.
Also, you seem to do a lot of thinking!
I assure you that I use more declarative language when I'm not trying to make a point that emphasizes the necessity of modesty and respect for others. When you start getting in that zone, conceding a little of the strength of your argument in order to make sure you're being inclusive in your language is valuable.