MLP - Flash Who?

I am told that Flash Sentry's appearance in this week's MLP episode is spreading chaos and despair.  I don't get it.  It looked like a giant middle finger from the studio to Hasbro to me.  They haven't been shy about saying they didn't like making the movie.  Assuming that was Flash, he shows up for five seconds and Twilight doesn't even give him a first glance.  Sounds like a reminder that EQG did not officially happen to me.