I think when you're a startup, you have to invest in all of these things - you want to hire some experts early on because they'll have insights that help you design a better product, and if your product appeals to experts it will be a PR win. But of course your goal is scale and distribution so you have to respect a certain lowest common denominator as well lest you become too niche.
Once you become a bloated monopolist like the three companies you just mentioned, your distribution strategy is solved in other ways (like, you've done some bundling and some acquisitions, maybe pressured a few companies into exclusivity agreements and are probably breaking some anti-trust law or other but you have lawyers). Then you don't care about the experts, PR or niches anymore, and you serve up slop. When the analytics recommend slop you go with the analytics, when they don't you ignore them.
None of this is to discount your insightful comment, just saying once you're big enough, your strategy is just doing tricky distribution deals, really (a fact no record executive would dispute).
Once you become a bloated monopolist like the three companies you just mentioned, your distribution strategy is solved in other ways (like, you've done some bundling and some acquisitions, maybe pressured a few companies into exclusivity agreements and are probably breaking some anti-trust law or other but you have lawyers). Then you don't care about the experts, PR or niches anymore, and you serve up slop. When the analytics recommend slop you go with the analytics, when they don't you ignore them.
None of this is to discount your insightful comment, just saying once you're big enough, your strategy is just doing tricky distribution deals, really (a fact no record executive would dispute).