I heard the potato harvest was generally good in Germany. This particular company is rumored to transition to organic farming in the next season.
I think it is great to ensure the product gets used but I also heard that it puts many other potato farmers under price pressure in the area.
Interestingly, some other products are also cheaper today than few months ago:
Basmati rice: -25% (2.5 Euro/Kg)
Pork: -25% (7-8 Euro/Kg)
Butter: -33% (4 Euro/Kg)
Coffee beans: -25% (10-12 Euro/Kg)
Chocolate: -15% (20-30 Euro/Kg)