His PG's had a PP100 of 80 so their shooting % should have been around 40%. It was a little bit better: 45% (in theory his team should have scored 73 points instead of 76). In your case your C/PF had nice PP100 but they have tried very few: 28/75. In theory your team should have scored 69 points. So a loss anyway.
Now why your C and PF have tried so few? Your offensive flow was not very good so your outside players had troubles to find your big men against the great opposite OD. So I don't think your loss is a real upset. Of course with a little bit more luck you could have won but it's definitively not a steal ;)
Joe
Definitely not a steal but still a bit frustrating as it could have massive consequences at the end of the season... that, plus the fact that I'm a sore loser but I guess we all are to some extent

I still think that I'm missing something though. His offensive flow was low too, lower than mine. His players still easily found a way to give a lot of shoots to his PGs, despite the 3-2 zone.
All in all his players shot a little bit better than expected, and mine did worse than expected, as evidenced by my SF who shot 16,7% with a PP100 of 78.
It was supposed to be much more balanced than a 12 points loss but hey, sh*t happens.