First when I saw the title of the episode I was like : ‘Yeah, meta fiction is good, it’s gonna be fun’
Then at the very beginning, seeing Metatron going all ‘Chuck’, I was like : ‘Hell yeah !’
Then… Casa Erotica : ‘Wait… Ga-Gabriel ?’
And then :
'Wait a minute. You know the serie, it's been 9 season and you goddam know how cruel it can be. Ok, he is so not coming back, I know it, he will die again or something.'
Then Cas waking up in Metatron’s office :
'I hate when i'm right.'
Though it was reaaaaaally frustrating, I just like this episode so much. I don’t think Gabriel will come back - remember just how the writers love to play with our feelings - but hey, I might be wrong (I wish I am). But it was good seeing him again.
Another thing : I saw a lot of hating posts against Metatron, because he is so mean, etc, but I think you guys forgot what a villain really is, with Crowley being such a sexy smartass these days, and Abaddon being quite useless. And I think Metatron is a pretty good antagonist, because he is a real douchebag.
I hope Cas will still say that he doesn’t get a reference though (Metatron is so evil he even killed our running gag, so he is a great villain, period).