If a user is interested in one product, The NY Times wants it to be the best product for them and have it priced for them. But if a user is interested in that product and one other thing, they’d rather upsell the user from that one product to the bundle. The subscriber then uses one product the most and then sometimes the other one—products at The NY Times: Journalism, Games, Cooking, WireCutter, etc.
Sylvain's take: 
By default, the NY Times sells its bundle to new users

Ken reflected on when it makes the most sense to have more of a “catalog” approach where users configure their package (like in B2B).
He says that even though their products are all different, they all still feel like the NY Times and relate with each other, making a bundle natural. If that natural connection isn’t there, maybe it is better to keep products separate and offer discounting when you get multiple products.