Not necessarily. It's fairly easy to prove that if the emulator did not exist, the leak would be fairly inconsequential; and considering how easy it is to show the percentage of pirating users versus legitimate users (probably 95%+), it's not a good look.
There's also the issue that, unlike prior emulators, Yuzu risks running afoul of DMCA anti-trafficking provisions for circumvention devices and software that uses circumvention devices. So, while per se emulating the Switch might be legal, decrypting the games may be illegal (as would software that is useless if it is unable to do that decryption).
There's also the issue that, unlike prior emulators, Yuzu risks running afoul of DMCA anti-trafficking provisions for circumvention devices and software that uses circumvention devices. So, while per se emulating the Switch might be legal, decrypting the games may be illegal (as would software that is useless if it is unable to do that decryption).
Edit: Strongly recommend reading my follow up comment explaining historical precedent: https://news.ycombinator.com/item?id=39530558