I don't know about that assertion, Kai. Maybe at the big level, but not so much on micros.
My pro friend has recommended for a year now to get an RO system. Nothing like peer pressure. I still might cave one day - I might get a quote just for kicks.
He says that most craft breweries use RO (he's friendly with a lot of the Cali and Denver micros), and frankly, every brewpub I've been to and brewer that I have talked to uses RO water and adds some back.
We just had a discussion on the NB board - Stone uses RO according to a recent Jamil podcast.
I think building from RO gives a level of consistency that is necessary for quality control.
Anyhow - thanks for taking the time to make that list - I am going to pm/email you later a profile that I used for my Baltic Porter - I think I overdid it a bit
but there's so much complexity in there, who'll notice!