As Pia said herself (via Tumblr and song made), Fluttershy's one of the only ponies who prefer her own furniture over Ikea furniture... (perhaps this is a diabolical scheme to replace Fluttershy's stuff with all-Ikea stuff???
I liked the comic but... how do I say this? Is Fluttershy on drugs? I'd expect her reaction in panel one to be more like: "Oh... really? Well, that's okay, I guess." Instead of "WOO! YEAH! YOU DESTROYED MY HOUSE!"