The one against Oldham, saying he's out of position when the ball comes in from the side it does is clutching at straws, you stay further away to begin with as it's easier to come toward it than back away. If it goes the other side of him I bet the same people still say he's out of position, so which is it?
For the goalkeeper tracking a header is very difficult, the ball can come off a forehead at any angle or height. A shot at goal usually comes with some backlift, enabling the goalie time to get set and estimate the path of the shot. If all else fails the goalie makes himself big.
The freekick followed the Oldham player falling over on purpose, it was never a foul. The kick found the tallest Oldham forward who had a free header. So if you want to attribute blame, the ref got it wrong, the Swindon backline got it wrong, and considering everything Ripley did well to get a hand to it.