At least one of the configurations of the 2012 Ford Focus/Fiesta transmission had issues. The mechanic at the dealer agreed it was a problem. Ford never acknowledged their fault as far as I know. A firmware update about a year later seemingly fixed the issue. Why wouldn't they acknowledge the issue and tell people they're working on it? Liability issue?

I'm sure they are -- it's a nice little profit center for them (without even requiring any inventory).