That's just not true. American superhero stuff is the one genre that requires 60 years of lore to parse and has each character have stories publusihed in three different series simultaneously, series that all need to print one issue a month. Most comic books are one-and-done.
I think this might come down to different cultural views on coming books.
It's my understanding that pretty much all of the U.K.'s publishing industry is especially borked these days.