If the studio expected > $500 of potential sales in years 5-10, then they would pay the fee and the game wouldn’t enter the public domain for 10 years.
Every game that experiences even a moderate success would probably be locked up for 15 years in this scenario, and every game that experiences even a hint of success would be locked up for 10 years.
I cannot imagine that the number of people who are willing to wait 10-15 years to play a game instead of spending $20 now will
materially harm the same of a game.
Waiting 5 years for small obscure game is easier then waiting for some massively successful game everyone talks about. Likewise, limiting your selection to 5 years old games is easier when you go for small niche games.
This would hit the small and niche companies hardest.
Every game that experiences even a moderate success would probably be locked up for 15 years in this scenario, and every game that experiences even a hint of success would be locked up for 10 years.
I cannot imagine that the number of people who are willing to wait 10-15 years to play a game instead of spending $20 now will materially harm the same of a game.