There are several distinct differences, I think the most pertinent one is that you can create seperate instances of the LLM that ingested that media without reingesting the media (i.e. you can copy the LLM but you can't copy a human). Copright law is screwed up for multiple reasons but it makes sense to treat LLM as different than a human consuming the media, especially if the LLM is created for profit (e.g. movie owner selling tickets to a dvd he bought in the store vs a home viewing is treated differently).