No, not for that company. Just make sure of what you are getting into. seems like a lot of work when you don't know how seriously they will take the interview or who will look at it. I'd want more information but that's me. Still ... Germany ... or anywhere really. Aren't they all over the western world?Or it could be a matter of getting hundreds of applications for one job and wanting to weed out some. Who knows. I'd prefer a phone interview, but I won't complain if I get the job.
Actually you won't know until you try. That's all you can do.