Sorry, but I'm just not inclined to believe you aren't experiencing the issues that this TV clearly has. RGB separation can't be panel dependant as far as I know, it is something that is inherent to the TV/firmware. Just like light bleed. Every KS7000/8000 I've seen has it. What settings are you using on your PS4 pro that you aren't getting blackouts?
If you use YUV420 you won't have any black screens. Auto, however, does cause them. If you don't have the black screens, please share information about the HDMI cable you are using (specifics, because too many comments are so vague about what cable to use).
Auto settings for everything and I've been playing lots of Battlefield 1 lately with no problems whatsoever. Using the HDMI cable that came with the Pro.
EDIT: Just double-checked and my PS4 Pro display information indicates that the console is displaying 4K in RGB with HDR supported and HDCP 2.2 enabled.