He is not a poor choice because he cannot pronounce the Dutch words, which are indeed almost impossible for non native speakers, but because of the way he talks.

Why was not a Dutch narrator chosen?

I have admired Escher for over fifty years and have his works hanging in my house.

When I took one in for framing here in Canada after a visit to the home country I discovered that he was not well known here. Hence my surprise when I met my son's, then girlfriend, over twenty years ago and saw some prints on her walls which now adorn their home.

Back to the movie which I enjoyed and gave an insight in his life which I was unaware of.