They might have well devised the first of its kind "ransom by installations" in the history of software, by making it possible for attackers to fake mass installations and get gamedevs into fatal debts. And they are taking the executioner role.
ROFL
So unless their anti-fraud system is asking Valve, Microsoft, Sony, Nintendo, Apple, Google, Epic, GOG, itch.io, etc. how many downloads have occurred (no chance that they'll all agree to that), then their system is just going to make a guess, which they'll charge you for, and hope that holds up in court.