I’m OK with people having less tolerance for longer pieces, wanting to consume all in bite-sized chunks. That fits reasonably with my reading style anyway.
However, I think it requires more time and sympathy per word than longer pieces. In a longer piece, the author has room to take potential reader misreadings into account, ward against them. Not so with short pieces. That means more of a burden on the reader to think, “What could this person mean if she *weren’t* an idiot?” or “What other interpretations might this phrase have, other than the one that leaps to mind?”