The team didn’t want to improve too much as they saw no way to repeat the improvement so they didn’t want to raise the bar and be unable to clear it next cycle.
A more concrete example of this was where a friend of mine built a system to automate a report and did something in record time.
He didn’t share it and sat on the report for a few days as he wasn’t that proficient with SQL at the time so didn’t want to give the impression that things could be done that quickly and make that the expected norm.
So the company itself would have liked the innovation. The employees were concerned about the new problematic expectations it might create.