I'm hoping that's the case as well - lots of good stuff was left in the pond as "complete" was really not as complete as one might imagine. We have plants growing in the pond proper that we left alone - plenty of good pond stuff lurking there, as well as the bog filter and bio falls filter pads.I decided to do a similar clean out this past spring and it was a game changer, got rid of tons of sludge, leaves, and other debris and leaving my bog filter untouched kept the pond from experiencing a whole new cycle!
So far, so good!