It wouldn't be direct evidence, but it might put it on the company to provide their logs. If they didn't retain them, then that could affect the ruling

If you’re willing to commit outright fraud, lots of crime is easy. But also the penalty for ever being discovered can be severe.

They also didn’t deny it happened. They would check logs before paying out.

Yes, but submitting a manipulated screenshot in court is a whole different type of fraud and can carry whole different types of penalties than just claiming X happened when it was Y, so very reasonably puts the onus back on the company to look through their logs and try to prove what's in your screenshots didn't happen that way.