It still shows October for me (https://i.gyazo.com/8ea7b17efcbd98c013b3efa427d52b3e.png)
There must be some kind of time zone weirdness with the internal release time they set behind the scenes (steam requires an exact internal release time, even if you are only advertizing a fuzzy estimate, so most publishers input placeholders)
So, like, if it was set on 12am November 1st JST, it will show up as October for everywhere west of Japan and November in and everywhere east of Japan (to the date line). Makes you wonder what the actual intended estimate is.