His mission was very successful. It had to be successful because his targets were too weak to put up a fight. In fact, the success he was having in kidnapping Supreme Origin gods was nothing special to a world god.
The only difference was that he could move much faster than most world gods so the interval between his abductions were very short. That is the only commendable thing about his operation.
Another thing that was commendable was that he was so prolific and hardworking that he went about kidnapping more Supreme Origin gods even though the previous ones hadn't been completely stolen from the void universe yet or hadn't become world gods yet and hadn't been added to Legion-0.
He was multitasking heavily, which caused the rate of disappearance of Supreme Origin gods to skyrocket. His actions had a lot of impact on the local population of Supreme Origin gods. Soon, many people knew that a world god was going around kidnapping Supreme Origin gods.