In this instance, none of these absolve Brady. It wasn't 3rd or 4th down, so concern about whether Lacosse will get a first is irrelevant. Lacosse being a good receiver has minimal bearing on this particular play as well. It's not like Tom has to decide if Lacosse can win a match up, the route combo does that for him. If Julian is doubled, then Lacosse is the read. If Brady really doesn't like what he sees, then he needs to look on tue other side of the field. What he can't do in this situation is give away free yards by forcing an uncatchable ball to Edelman. Fwiw, the defender off screen is not particularly close. The catch will not be contested and the first down is almost a gimmee.