I'm not sure that's quite what makes that meme popular. The OAG stuff is hilariously insane, especially when paired with that smile she does.
But I do think a discussion of the whole "men hate commitment" thing is worth having, because it is staggeringly common. I think it comes out of a social feedback loop— pop culture tells men that all "normal" men fear commitment, so in an effort to be "normal" a lot of men act as though they fear commitment. Because so many "normal" men act like that, pop culture assumes that's how "normal" men are and depicts them as such, and so on and so forth.
I personally think it's a load of bunk, but all I've really got to go on is my own worldview, which I can sum up as "COMMITMENT PLEASE THANK YOU".