I just checked my flight SFO-FRA seats. It used to show the backward facing seats also, but then it now changed to regular forward-only seats. Also, it was showing full, but the entire right sided of the plane opened up at the same time this seat icon thing changed. At first, I thought they went back to old config plane, but I checked the seats on seatguru.com, and it is still the new configuration without the new icons.

However, on my return, the backward facing icons still are there, and the right sided of the flight is still blocked.