I did sort of the opposite. I would click on "don't want to see this" for any link to an external site. It took a few days, but now pretty much all I see is updates from friends.
These modifications might also cause me to spend less time on my news feed because all the garbage is filtered out, so Facebook might at some point decide that it hurts them and disable these modification options, but then I'll probably just stop using Facebook's news feed altogether. I mostly use FB for groups and chats anyway. Just like with Youtube when they started showing what friends liked, I unfriended everyone and kept subscriptions.