Regression to mean may already be underway. Meanwhile, the Phillies are taking BP with the bucket of baseballs they got for him. Let's hold off on evaluation of the trade.
Seriously, the little hot streak he had was probably worth the trade, as long as nobody thinks he's really the .950 OPS guy he has been since he arrived, rather then the sub-.700 OPS guy he has been his whole career. The "whole career" may have a bit of SSS to it, and maybe he can be a bit better than he has shown in the past, but his minor league numbers are more AAAA/sub/utility than MLB regular. There's some value to that, but there's more if you have options left, which he doesn't.