Eisfeld I can confirm your research. It's on the Berlin site as well, also updated end of October. So I initially also thought they'd reimplemented it.
However I'm inclined to think Dr.Jack is right. I can recall they announced this a few years ago, maybe ten, only to ditch it fairly quickly.
Since there's been no official statement about it being resurrected I suspect it's just bad website housekeeping, or, because no official cancelling of the measure, it's left there by website maintenance who don't feel able to remove it.
I've never heard of anyone refused entry with this 180 in 6 month issue, and I follow this forum almost daily for some 15 years.