I don’t think that it’s so important for Anker in Germany. DHL is fast. It takes most of the time just one day for them to ship it.
Anker uses FBA (fulfilment by Amazon) so the only important thing for them would be a faster way of transportation from China to Germany.
But even that doesn’t take that long. I work for a small company as a job besides school and if you use plane it’s just 7 days of transport.
For Germany it would be more important to improve the network of Packetboxen (sth. Like Amazon locker) which would increase the shipping speed.