Trout himself said it best post game: "you write this script and they give it back telling you to make it more believable." (Paraphrase)
If you watch the replay of the last batter, you can argue he knew it was over, so he let up. You can also argue that one of the fastest guys in the league couldn't beat the throw. Or you could say there are just some unwritten rules that apply on certain nights.
I love baseball.
(first toot worded funny-Skaggs was born/last Angels no hitter was 7/13/1991)