Mills doesn't know that Heck is going to get beat. He's reading the defense & deciding where to go with the football. It would be nice to know what the defensive alignment was on the play, but I'm going to assume he read it correctly.
All I'm saying is that "there was only one viable option" is not correct. There were four viable options. The defense took three of them away, or two, or whatever.
Depending on what they were going for, & if Heck would have blocked his end, Jordan could have had a really big play.