OK, so I made that snippy remark on Saturday, and by Monday they had pushed a mystery 44.30 update to me with no documented changes.
Then I look over and notice that my passenger temperature control is now gone!
View attachment 752469
Not exactly what I was hoping for, but still good to see that they are aware of the error.
So I checked out the new arrangement and it works kinda like you'd expect (though arguably even worse than before). Changing the temp brings up the mini menu, where I can deselect the "sync" button to enable the passenger temp and presto, there it is. The volume moves over to the corner and the passenger temp appears in the original holiday update location.
Pressing sync again causes the passenger temp display to disappear and for some reason I tried this over and over again, despite the fact that it was totally consistent. I was apparently fascinated with the animated way the volume control moved in to fill the space, then moved back over to the corner when un-synced.
Anyway, next thing I know it's back to the old way. Passenger temp is once again permanently displayed, sync or not. Huh.