Well said Degsy, people forget how many thousands of troops and guns were not available for front line duty as they were otherwise employed defending Germany from air strikes. Further manpower had to be diverted to repair the constant damage to factories, railways, power supplies and communication systems.
Re. the bouncing bombs it would seem that they may not have been that effective as to the best of my knowledge they were never used again. When my Father in law was tasked with destroying the Kembs barrage he suggested using Upkeep bombs but all the original Lancs had been converted back to conventional bombers and he completed the job using Tallboys.