Excellent points.
For example, I'm specifically referring to things like in the rising card, having the person place the card in the "middle of the deck" and holding out the entire deck minus a single card. That's not out of frame at all. It's a reframing of the definition of the middle of the deck. It's in plain sight and depending on the size of the crowd, it's impossible to completely control all your angles.
Another example would be the double or triple lift where the magician lifts more than one card as though they are a single card. This always happens in frame. Everyone is looking at the cards. Even sloppy lifts, from a magician's standpoint, usually pass without detection, regardless of the speed of the lift. I've always figured this is because people focus their attention on the pattern on the back of the card and not the edges of the card.
Lastly, in pickpocketing tricks, the lifts always happen right in plain sight. For example, I may ask you step forward "so I can do card trick," lift your wallet, and with your wallet in my hand (in plain sight to anyone looking at my hand) reach into my own pocket for a deck of cards. I'll try to limit people noticing the wallet by gesturing to something with my other hand. I'll do a card trick or two and then move into the routine that involves your missing wallet. This is what I think Teller means by "out of frame."
The misdirection needs to be there, but if you watch, they happen several steps before a reveal. Savvy members of an audience might watch other parts of a magician's body, but they don't have the correct timing. They're thinking cause, then effect. Not cause, some random things in the middle, then effect.
Anyway, in that time between, people tend to wander in and out. In one moment they may be trying to figure out the trick, in the next, they're being amazed by the trick.
So, I guess to clarify: Once the illusion is completed, people have given up trying to figure it out. They allow themselves to suspend their disbelief in that moment.