Swedish English accents seem to be pretty commonly considered humorous, I think its just English speakers dont really know how to say the words(not that they do for German, but the resulting attempt sounds funnier compared to just “Cant say this word”.)

Slightly unrelated, but I dislike the Swedish chef, not because it mocks Swedes, but because it has deprived anglos of mocking Swedes correctly.

Vi speak verrry gud Inglish in Sviden.