TP was in fact very upset after the Memphis loss. Here he what he said about it to french media a couple of weeks ago:
" It hurts. After our loss in 2006 against Dallas and the Derek Fisher's shot, this is the third biggest disappointment with Spurs. "
Some other interesting quotes from TP:
"We got dominate in the paint the whole series. Marc Gasol has hurt us a lot and we've never found an answer against Zach Randolph. They were too younger and more athletic than us."
"Spurs future is in the backcourt. We have a lot of talented players there with Manu, George Hill, Gary Neal and me. Now, let's hope we will be able to find solid bigmen because we need it. Tiago will get better but we need other bigmen. Every year, it's the same problem: we have to find bigmen. We now not have the option to postpone that need."