Yes, Miele indeed made those wooden washing machines for a long time, but by that time they also had brought more modern machines on the market. I think those wooden washing machines were meant for farmers etc. A neighbour of my grandparents had one, she used it into the early 70's. She really liked it and kept it until her husband forced her to buy something new. He sold Bosch washing machines, my mother bought her Bosch automatic in the 1960's from him!
I suppose the Sunil video was situated in social housing in Germany. Most likely they didn't get the modern stuff very early.