Overreaction and sensationalism.
Agreed. There are far more significant issues that seem to be overlooked or unquestioned. For example:
Does an extension collect metrics on browsing data?
Ghostery is transparent about this:
Ghostery has received criticism over its business model. This consists of collecting data about third party trackers through their browser extension software after the user opts-in, and then selling it to advertisers to better target their ads. According to Ghostery, this data is collected and used only after the user opts-in, giving Ghostery permission in order to make commercial products so brands, not advertisers, can improve the user experience of their customers on their websites.
This model may turn out to be the best of both worlds (users / advertisers balance), and I appreciate how transparent Ghostery is about their practices. But.. how do we know if other apps are doing the same thing.. without any transparency? If it's not disclosed on their website and there's no opt-out, I find that far more intrusive than apps with whitelists you can't modify.
Also, how can we trust a VPN service? Unless you know who owns the VPN or it's been audited, there's no absolutely no reason to trust their service, even if it has 5000 5 star reviews in the app store.
We're constantly distracted by an app's performance or UI or capabilities. But if the trackers / ads being blocked are working with dev's building these apps, then we're basically giving these companies the data they want (and more) in exchange for a better browsing experience. Some would say this is fair trade, but ultimately it boils down to trust. Trust should be far more important criteria than performance / capability, and honestly it's difficult to know.