The "if we just made this play, this play or this play, it changes everything" argument could be made in almost any game. Yeah, Ridder made some mistakes that we didn't take advantage of. Love also threw one in the 4th on 3rd down that could have been a pick 6.
The penalty yardage on the long PIs skewing the yardage totals is a fair point. I just think when you allow 450 yards and are, as our own HC put it, "gashed consistently" on the ground all day, you don't have a very good case for saying you played well enough to win. We lost, and there's plenty that went into that. Both sides caught some breaks at times, as NFL games go.
Do I think we can beat Atlanta? Sure, being at full strength would help, but we have to do much better stopping the run.