I think you may be interpreting the word “relevant” in a different light than the person you’re replying to.
It reads to me as if you’re saying physical media is important for humanity as a whole and the preservation of knowledge, while your parent comment is saying physical media is no longer significant to individual consumers because it’s not their preferred method of consumption.
Debatable. IMO print is the best medium for long-form written and grapgical narative work.
Streaming media can’t be lent and is locked up by excessive and arbitrary (from the consumer’s PoV) rights leveraging.
Given physical media is declining, yet more functional for its archive potential, Imd say it was now more relevant than ever.