Pothole quickie

I noted yesterday that they'd repaired the series of holes along the Areley Common Dunley Road junction. Well I say repaired I mean filled-in, part of the original surface sits like a tiny island surrounded by dark tar. Shame they didn't get chance to go around to York Street where the eternal hole needs topping up again, nor to the Worcester Road island where the holes need patching again already.

There's got to be some reason for this - actual repair vs patching every month. Cost, time, disruption?