I would take built in NDs over 4K any day of the week.
My job consists of getting the shots of actual happenings with no chance of directing(news). You can't really stop a politician or rescue worker or whoever to screw on an ND.
If this camera takes on the "AG" video name, asking for NDs is not that unreasonable.
I can see that 4K is much better than NDs for marketing, but in my world(and I bet in yours as well) NDs has much more value. Sure the ability to reframe in post is nice, but I don't know how many in the market for this camera will deliver 4K masters...
You people crack me up. You finally get an affordable 4K Panasonic GH model that you've been begging years for, finally has ALL the video-specific features for audio, proper codec, MFT lens, portable ergonomics... and your first reaction?