Stinky-Dinkins said:

And you'd have the same exact re-downloading problem if the MKV was "not quite right," I'm not really sure what the distinction you're making between the MKV and BD-ready DL is in that respect.

I was thinking more about audio and extras changes than the movie video: having to download a revised BD is more onerous than downloading a modified audio track or extra.

If a BD is ready to go, then fine, but I thought mkv's might provide more time to get a final BD ready without as much time pressure, whilst still giving the enthusiasts the content that they crave.

Harmy is primarily doing this for his own needs and I am appreciative for being able to gain access to the content, so I will be happy with whatever Harmy decides to release.

I personally like the idea of components that an enthusiast can put together however they like. Making it at least a little challenging helps keep the studios off our backs I think. Create a shiny BD that looks like a commercial offering and make it easy for anyone to download could attract studio attention.