You're so extremely wrong it's not even funny. Porter was on the field for our final drive of the game. Here are three examples of him playing "significant" snaps and doing a really shitty job.
Play 1:
Texas is down 5. It's 2nd & 10, with 1:45 left.
Porter is outlet man on the pass, but he runs way too far out on the route. Basically, he should have stopped when he turned around, but he keeps backpedaling while waiting for Sam. By the time the ball gets to him, he is against the sideline, and a single defender is able to drop him for a 2 yard loss. He runs a shitty route, and basically runs himself out of bounds/into a tackle.
Play 2:
It's the next play. Texas still down five. 3rd & 13.
Porter runs the same route. He does a better job of not running himself out of bounds this time, and because of that, he's got a lot more space to work with when he gets the ball. Texas needs a first down here. But after making a pretty shitty attempt at a juke, Porter lets the first defender nudge him out of bounds. What an absolutely shitpile play this is. Basically the opposite of the LJH pass plays for 1 yard which turned into 15 yard gains because LJH didn't give up. Porter surrenders himself, forcing us into a 4th and 5, instead of fighting for extra yardage which could have made converting much easier.
Nevertheless, Sam comes back the next play and converts the fourth down like a fucking boss.
Play 3:
Same drive. 2nd & 10. 1:17 left.
Texas is in it's 5 WR look. Porter is split to the top of the screen. He's got no one over the top of him. He runs a 5 yard sit route. Sam puts a ball right on his hands, and Porter drops the freaking pass, because he totally sucks ass. That forces us into 3rd and 10 instead of 3rd and 4 or 3rd and 3. The next play, Maryland drops 8 defenders, because they know Texas has to throw the ball, and Sam throws his second pick of the game.
So, yes. Porter played "significant" snaps in the Maryland game. And he totally shit the bed.