Huh. I had her pegged for a recent immigrant from Central/Eastern Europe. The seeming disregard for fashion/grooming standards and 'customer service' and the short sentences would fit, as well as the (apparent) stoicism.
That's how we're viewed by the outside world...? OK then. That's kinda sad
Tough, capable, no-nonsense, resilient?
That's how this particular German views our eastern Neighbours - that insulting?
I never said I was insulted. I said I was sad
anyhow, based on the character attached to those comments, you might say "tough, capable, no-nonsense, resilient", and you also might say "thick-skinned, drab-looking, gruff, emotionally cold and less-than-comfortable with the English language". That's the vibe I got from the part of your post I quoted
And since at least in some situations I've heard such labels attached to people from Central Europe/Poland by Westerners (or at least some of those), I think that view is not exactly uncommon. Heck, I'd agree with some of that, overall.
...I guess it's still better than the "you guys steal ALL the cars around here" stereotype that most Scandinavians seem to have