The AA filter / OLPF is a source of great confusion out there.
The truth of the matter is that it has ZERO affect on video.
It only affects the very high frequency patterns - i.e. stuff which occurs subtly over a 36MP still.
It has no affect at the 1080p level. It'd have to be a very strong filter to soften 36MP so much to affect 2MP! No camera has a filter in it this strong as it would impact on the sharpness of stills when viewed at 100%, giving the camera a disservice in photo-orientated reviews and on pixel peeping charts. The only filters this strong are the Mosaic Engineering ones for DSLRs.
Moire and aliasing is 100% down to the way the sensor is scaled - i.e. the way pixels are binned or skipped.
I found out the hard way when I removed the OLPF from my 5D Mark III. Aside from also removing the IR cut filter which made my image purple, it had no affect on sharpness in video mode. Though the IR contamination did give me more dynamic range :)
The Sony rep here is putting out bad info without having ever seen the video output from both cameras and compared. He may as well reel off the spec sheet.
Ed Khou reacted to Andrew Reid in New Sony A7, A7R and RX10 - exclusive hands-on look at video quality