To me it looks like his coach decided that the Sungrazers were up by enouh in the fourth quarter that he could bench the starters and let the backups play. That's why you won the 4th quarter, and it probably led to his ratings dropping overall. I've seen my team do the same, I'll be winning, and then the starters are pulled and my low paid backups eat the minutes to end the game which leads to a big drop in my team ratings even though we still end up winning.
Not in this case. There was never garbage time in this game. He actually had a bit of a comeback in the 4th. I was pretty concerned as I saw it take place, actually.
I also was curious about how it looks like I probably should have lost from a ratings standpoint, yet still won.
I've seen it happen before here and there as well, and my super fancy theory is that ratings don't tell the whole story.
I agree that home court probably has something to do with it as well.