This is interesting in several fronts. First of all, Facebook shouldn't try to present a business move as an altruistic move. It's hypocritical and reminds me too much of a different Internet company. But the net neutrality aspect is also important. It's very dangerous to make a single company the gatekeeper of speech and communications, which is what the Internet serves as a platform for.
This website shows you how fast YouTube can transfer data to where you are. This is interesting because many Internet Service Providers are throttling the speed for specific websites (often YouTube) which goes against Net Neutrality.