I mean if you want to do time fraud you pretty much just can. You can start tracking a task at 9am then immediately go to make a coffee and chat to a coworker until half 9 to run up the clock. You really don’t need a fancy tool for that.
However a tool to make data more digestible and readable shows a level of interest in presentation of data. I would be less concerned about that. Someone willfully doing time fraud wouldn’t advertise it.
Now the airport gets the opportunity to pay a civils contractor to rebuild the runway, thus raising the GDP of Japan. American economic development at its finest.