> is it a better way of doing things,
Should have said,,, it does depend on how good the stitcher is. With spays, it was first done to reduce the incidence of dogs removing stitches themselves. I once had a bitch pull stitches out of her own leg, and it was gross to watch.
If internal stitches are too tight, the pain and irritation will have the dog messing with it. So it is extremely important that the vet has a good tension to those stitches.