Omnipresent
They haven't moved on.
Well .. I'd guess since everyone now offers seat back TV, they are just making sure that potential new customers know that.
Since the specifics of the entertainment systems are difficult to get across and any 'prime' carrier offers the same type of 'start when you want' film and TV progs, there is little to separate them. Old lags that remember the introduction of the Super 8 film on cartridge at the front of the 747-100 cabin and the earphones that were plastic tubes connected to mini speakers in the arm rest ...
No, I don't work for them and never have.
(signed) an Old Lag