Yes, the whole "research" aspect of the show is ludicrous. Not just Maggie's research, but Meredith working on that idea that "came to her in a dream". Researchers spend years making these things happen. She's just making some notes and I have no doubt she'll have a working prototype by the end of the season.
I think that Koricick *may* have gotten through Owen's thick head, just a little, when he confronted him about trying to get between him and Teddy. "You've chosen Amelia over her multiple times. I love her and she's my number 1."
As for DeLuca and Karev... I was so mad at Karev. He threw DeLuca into the mix (some kind of altruistic gesture because he's dating Meredith?!?!?!) and then didn't like it when he go emotional and then when he fixed everything, still banned him from the surgery. Just because you are worried about Jo, don't be a dick, Karev.
And speaking of Jo, her face was in the shadows, but she looked bad... bruised? Something went horribly wrong with the visit.