It would have been, gronk got past the secondary. the issue was brady couldn't get set, and then lofted it.
properly thrown it -should- have come down about 15yards farther down the field(gronk was ~5yards past where the ball came down, & provided gronk catches the ball, the most likely result would have been a touchdown.
alas, the rush got to brady, he threw off balance got too much air under the ball and threw it short as a result of "all of the above".
no big deal all qb's do that once in a while. brady had an ok game, not great, not awful. ok- and they won easily. now comes the meat of the schedule
atm it's NE and KC are the head of the class of the AFC...
provided no major injuries occur, then the road to the SB - might- go thru Foxboro.