I'm grateful Panasonic fixed the flash problem, and my two non-Panasonic batteries (one from BestBatt and one from an eBay seller some months ago) still work fine. (Though I have noticed, even before the 1.5 update, that they don't give as much warning they are out of charge as my Panasonic batteries -- the battery indicator goes from "fully charged" to "no power" very quickly.)
I, too, wish they would implement the one-click feature. However, they say that they won't. I wrote to them a couple of months ago, after the GF1 one-click firmware feature came out, and asked if they had similar plans for the G1 and GH1, and the tech who responded said they did not. As they have now come out with a G1 firmware update that doesn't implement the one-click feature, it appears that they have a technical or marketing reason for leaving manual focus assist as it is, and I'm focusing (pun intended) on getting used to the thumbroll technique.
As for complaining, I think this is a cultural or family value. Some cultures and families value complaining and do it all the time, to each other and to others. Some look at complaining as pointless or negative and don't do it and don't like it when others complain. That's why they make different flavors of ice cream.
Just my two cents -
David