You did everything right. You didn't punish Owen by putting him in his crate, you put him in his safe place, and left the door open. Good job!
As for the cats. Well, I love both cats and dogs, even though I'm more of a dog and bunny person, I do adore cats. I had cats all my life. Cats have only been absent since I met my husband. He's very allergic.
Cats do what they want when they want. There's really no rhyme or reason. So, I'll echo what the others have said. If you figure out why they act the way they do, let us know, you'll be breaking a huge mystery, because even cat experts have no idea why cats act like cats.