There might be latent sales department demand for more features. I don't think there's latent market demand for more features, at least not to the extent consumers would choose to pay for new features.

How many Facebook users were willing to pay to have to download a separate Messenger app, or for Oculus integration? How many Apple users would pay extra for the Touch Bar if it were a standalone feature?

My guess is, not many. Probably not enough to justify adding the feature.