Because emulation is legal. It shouldn't have to be hidden. This was taken through the courts in 2001 with the Sony vs Bleem lawsuit.
What appears to be happening is Nintendo is abusing its power and money to make threats of legal action that these groups just can't afford to fight, even though they haven't done anything illegal. It should be coming as a surprise that Nintendo is coming for them, because this is completely legal, and not some fan game using Nintendo IP (which is what they normally shut down).
"Go woke, go broke".
Seriously, has this really happened to any company?
It's easy to claim Bud Light, but they were doing fine until they backed away from supporting LGBT, then they had trouble (from both sides), so it's just as easy to claim "Go fasc, no cash".