It's impossible for the law to cause more games to die, because already the default fate of online games is for them to die. If, with the law, a studio chooses to use an LLC to create the game to conditionally release sources once it shuts down, that was a game that without the law would have died anyway because the studio wouldn't have chosen of its own volition to release sources.
If a studio on it's last legs is required to service a failing product instead of working on a new one the studio will simply close and not comply. That's what tends to happen with forced regulations like this.