In my experience, this is very much a cultural thing.
The way Linus talks is the usual way that people talk at most of the workplaces I've been at over the years in Australia. However, we're not exactly known as a sensitive people. If something is crap, we call it crap. It isn't generally taken personally. It isn't seen as overly aggressive. If someone is failing to get a point, they will get called an idiot, but people will continue to explain. It isn't seen as a personal attack, just normal frustration.
However, when dealing with other national backgrounds, we're also expected to adapt our behaviour. The number of times I get a 'yes' answer from Asia that absolutely does not mean 'yes' is probably in the high double figures per day. Americans tend to expect the "compliment sandwhich" when you need to point out a flaw in their work, and will take it personally if you say that they've chosen the wrong approach. There's less of a divorce between the work and the person.
