For anyone that wasn't around then, the inspiration for this joke came from player made video back in beta when a couple guys discovered a animation glitch....
Since then there's probably been hundreds of posts asking for a /plane emote - even somewhere on this forum I remember posting the pic of a dev bug squasher with a screenshot from that vid on her screen and we were all like noooooooooo don't fix it!!
So giving it to us now, along with the music changes and the old timey graphics and aviator cap (which you can wear btw along with your aviator shades or other eyewear/face masks) is what made it so funny! Of course all the vroom nyeeerooooom sounds all the characters make is even more hilarious!