Facebook isn't just fighting adblocker,but also the underlying cause of blocking
techcrunch.com
techcrunch.com
Facebook has no respect for consumer privacy and little deference to user's preferences. They still collect every iota of data, they still store this data, they still share this data.
They also still track you across multiple domains, whether you're logged in or not.
The only change is the presentation of ads and the eradication of tools used to fight surveillance.