Engagement is the key metric for us to understand as this news related spat is being driven due to it. Engagement means that each user has, when consuming their news, provided the news provider with their maximum possible attention and time. Increasing Engagement means increased revenue for the news provider, thus maximizing Engagement is important.
But sometimes, playing around with engagement can also be unethical. Eventually making engagement a primary measure leads to a polarized audience. The reason I say this is because engaging with view extremely pro or against your opinion just reinforces your biases. This leads to exactly the kind of polarization that a company like Cambridge Analytica can take advantage of. We are badly in need to unbiased editorial. Unfortunately, these unbiased articles will never lead to engagement.