When converted from the old recliner seats to the lie flat seats, the front lav was removed --
UA 764 seatmaps -- and appears the booking engine seat map is not correct.
The present TATL versions is 39BF, 70E+ (including row 28) and 133E-. 33 fewer economy seats and 19 more BF (nearly doubled) the older version. If anything the BF folks are getting the biggest change.