Magic serves many different audiences -- they even purposely design cards for certain players knowing others will hate them. I guess the flavor text hits different people too.
Just a fun, stupid and memorable flavor text.
But there is more:
- They made an Unhinged card out of it (Ach! Hans, Run!)
- It is referenced in an other card with a similar ability (Revenant). "Not again." -Hans
- Saffi Eriksdotter is a creature from the "time spiral" block. Many cards of this block are "parallel universe" version of older cards. And indeed, here, Saffi Eriksdotter manages to run away.
I both played and read Invasion through Fifth Dawn, and while the quotes never appeared verbatim, some of them could be pinned down to specific events. One of my favorite easter eggs was learning that the Blind Seer from Invasion  was actually Urza in disguise... which fits that flavor text perfectly.