I think it boils down to cost. Digital content is extremely cheap to replicate and distribute; hence the quality of the content is assumed to be lower (and it’s usually the case). One doesn’t have to put in too much effort in producing digital content.

Now with ChatGPT, it’s even more so than ever. It’s practically free to produce digital content.

On the other hand, even by just printing out a doc increases the cost of replication and distribution significantly (compared to pure digital replication); hence the quality of the content is assumed to be higher.