Reason Form durable Mega-Spreads?

Hello,
i am just curious- I found a broker who has mega-wide spreads on the Dax30 and Franc40.index. I know that spreads are not always the same and depend on several factors, but look at that, that’s the normal spread:



There are broker who offer spreads for Dax not more than half point.
Especially the French is funny- I mean nobody will trade those indices with such spreads. What’s the reason that broker offer such inconvenient circumstances?