On first look, I thought it was a bad throw, but at the same time, it was so high the defender had no chance to pick it off.
Watching QB School's breakdown of the game last night, Fields still struggles with the timing on those hitch/come back routes. He's just slightly late on them because he does this weird stutter step when he already has his back foot in the ground. If he just rips it without that split second hesitation, he wouldn't need Moore to get like 3-4 yards of separation on those routes. Because not every WR can separate like Moore.