They play perfectly fine on PCs (6th smiley from the right)
So as the QT files (6th smiley from the left)
Avchd is problematic to review, it's crap for editing.
Avid resisted a lot before finally accepting the heresy and enabled to import those files natively.
But Sony is the silent tiger hidden behind the bush. When I saw their latest DSLRs generations, nobody was taking them seriously, but I observed that the specs where going on a very good direction.
They seem to understand and beleive more on the convergence stuff that never comes. They've been doing this silently those latest years, listening a lot to their clients. When the tiger will jump, it'll be too late. It seems that it showed its claws.
We are a generation, for cultural and economical reasons, IMO, that want it all. We want a well designed camera, solid built but not big, powerfull, fast, reliable, versatile, still capable, we want built NDs, high-speed, versatile mount, good sound etc... and cheap. The manufacturer that brings that on the table will dominate the market. (and not only the low-end because something is sure, they cut budgets on the high-end too)
You hitted the point with: "the ability to confidently hit focus and sound without extra crew is not something to be taken lightly"
We're the first generation multitask-crafts. Technology has to colaborate to help us acheiving this. To do the work of 3 people, as good as 3 people, we need the tech, we depend much more on it.
Before it was a specialist world. I know that many high-end specialists and long time motion pros are watching all this with a clear disdain but the world has changed and the rules too.