The problem is likely related to the one with video. Sure, I can give you an aggregated subscription but it will cost you $1,000+ per year. How many people will pay that?
(And that's around what the basic cable TV bundle cost so it's hardly out of line.)
For video today, you have the a la carte choice. I dropped my cable bundle and spend less per month for better programming. It means I don't have any live TV but it's a reasonable tradeoff for me. I don't really need an aggregator. I have 3 or 4 monthly charges, any of which I can drop at any time and I'm fine with that.
The issue with newspapers/magazines is that there are so many of them and there may be only an article or 2 a month I'm really interested in.
(And that's around what the basic cable TV bundle cost so it's hardly out of line.)