And again, I don't agree with your assessment of the coverage on that play. The guy out front was on Witten. Now there are two in coverage, not three as many have claimed. The guy who was the deepest was the one who would probably have made the tackle. But he was 8 yards in front and eight yards deep. Not in position to make a play on the ball. The trailing guy was already out of position as he was a couple yards behind. He was not in position to make a play on a normally thrown ball. But as we all know, the ball did not come out normally because of him being unable to step into the throw and put any kind of power behind it. Unless you're still trying to justify him just stepping on the foot and not trying to actually step forward like every other throw made in the history of the world, as we've seen explained in another thread.
We see throws into this kind of coverage all the time. In fact, more than you'd think during an NFL game. If you're waiting for an NFL receiver to be so open he has nobody around him, good luck. You'll be waiting a very long time.