Bonnie did indeed do good.
But, Tyger, just because Matt had one bad hem job doesn't mean that all hem jobs will be that bad. I've hemmed my kilt made from a white-background dance tartan, not bothering to 'hide' the stitch in any kind of line and you'd be hard pressed to see any stitch at all. It's not in how you 'hide' the stitching, it's how good your stitcher is. And, obviously, you found a good'un.