Unauthorized is certainly better than non-consensual, particularly in a sex-related context, but I would also even question the word porn.

I know it's commonly used as in 'revenge porn' but is it 'porn' when people record themselves having sex for private use? Seems to me it trivializes takes away from the issue, which is an invasion of privacy.

In fact don't know exactly what Gawker showed, but if the content was pornographic they would presumably be responsible, as all porn publishers are, for complying with record keeping under 18 USC 2257. An impossibility in this case.