I know you like to tell yourself this, as I see you make this argument over and over. And I know there is nothing that can be done to change your mind, but the fact of the matter is, it does ruin it, for the majority of people.
Those traveling to WDW are told over and over and over and over " 99.9% of the time, if you don't have a reservation, don't even bother trying" (see the above posts for confirmation.)
So the average family, going to Disney in 7 months, will call at their 180 day window (as instructed by their guidebook, friends, etc.) and try to book, say Crystal Palace, for their 3 year old son to meet Winnie the Pooh at breakfast. If they don't get the ADR, they'll assume there is no way they can eat at Crystal Palace that day (and why would they? Everything/ everyone tells them there is no way to walk up.)
So while you're out with your kids, having a great time at Cape May or Akershus or whatever your "alternate" breakfast was - someone else's child is missing out on Pooh & Friends, so that you could cheat the system and be flexible.
ETA - I'm glad for you, but it makes me crazy for the others who miss out!