There are a lot of "Red" (Ethics, Society & Politics) talks. And a lot of "Yellow" (Art & Beauty) too.
I don't say it is bad thing, as all "our" tries to be "be out-of-politic" and "don't bring politic to our beloved technology" is why we are where we are now (in rather sad world, IMHO).
You have a narrow view of "proper hacker talks" and the purpose of the Chaos Computer Club. The congress is representative for what is of interest for CCC members.
Now I really want to go to a "Sexuality, Gender and Hacking the RP2350" talk. Maybe next year?