With (diminishing) respect:
I do not anywhere state that keeping the originals separate from the Library is a bad idea (VERY or otherwise) in the case of Aperture. Quite the opposite, in fact. Aperture is quite capable of managing referenced masters spread across multiple disks. So, no Achilles heel there. I can do a web search for most things - including 'is the earth flat' and I'll get some hits. No, I disagree, knowledgeable reviewers do not agree with you. It's just not true.
Further, containers are not designed for cross platofrm use. There is no where that Apple claim that either iPhoto or Aperture are cross platform apps. You're clutching at straws now. And no, back ups and syncing are perfectly possible with containers, you just need to learn how. I back up containers for iPhoto, Aperture, DevonThink to multiple locations using three different apps - Time Machine, SuperDuper and Forklift - and all of these are incremental back ups.
And, you know, name calling doesn't make you any more plusible.