Right, but imagine Nintendo right now. Non-paying customers are now playing, and sometimes even streaming, games a week or more ahead of time. Because if you can get a cartridge, you can dump it and publish it.
Also, ~70% of game sales are within the first month, if not higher. It’s why companies pay big for Denuvo - slowing pirates down a month could save tens of millions. For Nintendo, having games dumped before release is embarrassing and at the worst possible time financially for both them and their developer partners.
If we were talking about Switch game dumping after the end of the Switch’s life like the Wii or GameCube it would be a very different discussion.