It Is a One Direction World
The problem with the fact that One Direction has had three number one albums in a row is that the album format is dead.
How do you reconcile the fact that this is a group that actually puts out albums that people want to buy? How do you resolve the conflict over singles vs albums?
I don't think you can take anything away from the accomplishment--it is all but impossible to sell a physical album to anyone nowadays. But it might be a positive thing if people focused on talent development and assembling a dozen or so songs that could rightly be considered a project and an accomplishment.
Oh, and it was the Monkees who last hit number one with their first four albums, all in a row.