Because he promised to update those stats after every game and a lot of interest was shown when he posted them in the past. People obviously cared, and he is in a position on this board where he is expected to keep up with things like that.
I just think you're upset over the loss and lashing out at him for posting something that wasnt full-blown burn down the franchise type stuff. I know the feeling, trust me, I lashed out last night and got a one day ban. However, I can at least take solace in knowing I directed my posts towards people blindly defending that performance. You're angry about Hostile posting stats, stats that are almost entirely independent of the final score. Hell, he actually posted some negative opinions today, much moreso than many others that have avoided your e-wrath.