Other than the anchors, about two or three bolts have been added, on the first pitch only, in places that are run out a bit (no, it wasn't me). Sure, 5.9 climber wouldn't be uncomfortable with the run out in those sections, but this is a good place for 5.7 climbers.
Second, the walk off sucks bad. It's sandy and nasty and all the traffic on the delicate soils is bad for the environment.