Do teams not use the same 11 players on field goal blocks for every play?
I can understand how you get 12 players on defense because someone was confused about what package you’re running, but if you’re the 12th guy on special teams shouldn’t you stop and think “Hey, I’m not usually out here for these plays, maybe I’m an extra?”
I could have sworn that the D gets time to sub out if the O does but apparently that rule is not enforced after the 2 min warning of either half (Rule 5-2-10): Note: The quick-snap rule does not apply after the two-minute warning of either half, or if there is not a substitution by the offense.