Is It Such a Difficult Language to Learn?

This blog is becoming my collection of idiots. Or am I just sounding like a grammar nazi? From a CWIT mail today: "The Harvard/Yale Football Game is vastly approaching." How, pray tell, does one approach vastly? Is the game looming over us, encompassing a boundless space as it sucks us into its universe? At first I wanted to give the benefit of the doubt and merely assume it was a typo, but "fastly approaching" is no more grammatical. Why is English so hard? And why am I in such an obviously cranky mood? I seriously need to lighten up.