Right, often what they do is they try to find "close" syllables. Close is the wrong term as some are not close at all. Vancouver and Philadelphia for example.

It's like taking Milano and cutting it up into Mil + Ano and saying, hmm, in English the closest syllables are approximately Mill + Anus, we'll call it Millanus, oh, but that's got a word we should avoid so let's call it MillLand.

The point is, it's not wrong or bad for (any) people to get foreign words wrong when they pronounce them.