That graphic is misleading. Goff had a blitzer in his face and St. Brown was about to run behind an engaged lineman. Hitting him was no gimme. Goff had to get rid of it immediately or get crushed for a sack.
I agree. They're trying to bleed the clock to leave the Bills as little time as possible to respond. The 3rd-and-1 incomplete pass was a killer, especially when you have Williams in the backfield.