And in general, if you pay for news, you want opinionated voices you can deeply trust, and whose bias you're familiar with. That's not possible on an aggregated news platform, since that by its nature will try to be all things to a fairly large group of people - you need a mass audience to pay for all the writers. Individual writers can afford a smaller audience. (Which also means they can avoid giving away much content to regularly draw an audience)
What that means for large-scale/expensive reporting is an interesting question, because the independent model doesn't work for that almost by definition.