Yes it is possible the rain affected Grossman but when you closed your eyes & those 2 passes looked like CP passes just drifting in the wind
Grossman looked like he was throwing off his back foot and he was being rushed and off-balance. Those are throws he never should have made. At least Chad has learned it's better to throw 'em away than do that.
Wasn't grossmans arm strength compared to Favre at one time? I think he has a very strong arm unless I am thinking of someone else.