I don't see any posts about this, and people still seem to think they are missing. The update notes weren't changed, for some reason, but they did add brand accounts. In addition:

• You can now click on embedded video links. (IE: the links to other episodes at the end of a video.)

• For Oreo, they added a second channel. It has a shit icon and is also just called 'YouTube', but... it's there?

EDIT
I seems that maybe 2.01.04 isn't out for everyone? But it does have brand accounts . Android O on a NP.