I gotta push back here on things you said. While it’s correct that a fullback catching a long pass is anything but guaranteed, that play up until the throw and catch was executed well (the player was WIDE OPEN) and that throw is easy to make. Im quite certain DR would say the same thing.It was unlikely because the chances of your fullback catching a 32 yard deep post play is low. I'd say this is evidenced by the thousands of games I've seen where the fullback is not asked to run a 32 yard deep post. It's hard to execute, hard to throw to, and even in perfect conditions - like it was - may not work
I think your original point does have some merit though that a player who hardly plays and rarely catches passes is the one going deep. Why not a Carter or Thomas or even Bonner lined up in that spot