GOUT has too much because it's not just the camera-negative's grain. The GOUT was transferred from a print that was several generations away from the source, and thus had extra grain. Basically every time it's printed onto new film, the grain from the film it's being transferred to is ADDED to the grain that's on the original, so you have double the grain (a very simplistic explanation, since different film stocks have different levels of grain, so it'll never be a straight doubling, but you get the picture).

The GOUT looks like it's been copied at least three or four times, so it has about three to four times the amount of grain it should have.

Good transfers will use either the original camera negatives or the interpositive made from those negatives (if there were a lot of optical effects, or if the original camera negatives are unusable for some reason).

So no, grain in itself is NOT bad, but extra, unnecessary grain that wasn't meant to be there IS bad.