So, everyone who downloads iOS6 onto their iPhone 4/4S will have to live with this "upgrade"?
As far as the article goes, I wonder why Engadget didn't list the new maps as a con. Certainly sounds like one, even in their own words.
I know that doesn't really solve the issue for other apps, but I bet a good amount of address-clicking comes from the browser.
You will probably be able to jailbreak and replace the Maps app with the older version. That may not come out for a month or two though.