I don't know. Is there anything stopping you using the latest Miley Cyrus album for commercial purposes if you downloaded it via torrent and never agreed to any licencing terms?
It would be like playing copyrighted music in your office without permission. Perhaps technically illegal, but your customers will never know what music your Devs were listening to...
And even if it did not, Meta certainly has a more capable legal team with more cash to spend than the average HN user.