Reality is a fickle thing, sometimes it just ignores the world of fiction while other times it comes down like a hammer on a nail. Let us go back to the Strange World of bipeds and of technology to see what Twilight and Spike did not see; how the world would react to their actions. How the world reacts to such actions that would remove the veil of safety and precedents... and how the government tries to cover it up.
This will include spoilers to Equestria Girls, in case the description didn't make it clear.
Rated Teen for general descriptions and references that may upset some.