It's simple, just like every other fastpass. No one is forcing you to get one.
Every major city parade, Thanksgiving, Christmas etc. has reserved seating. What's less stressful, picking up a fastpass, then coming back hours later to a reserved seat, or waiting for 90 minutes then have the joy of a family asking you if their child can move in front of you, because after all, WDW is for kids, and before you know it Mom, Dad, auntie and the grandparents of the precious spawn are all budding in front of you. It's either you let them in, or everyone think's you're an ***.
I'll take my fastpass and wave at you behind me, thank you very much.
And for those whining about spontaneity, how has the current fastpass rides ruined spontaneity? Personally I'd rather get a fastpass than wait in line for a couple hours of "spontaneity".