The 2/3" interchangeable lens Scarlet isn't competing with HX-A1 or D5 MKII, it's competing with Sony F23, which costs over 100 000 dollars - and it looks like it's winning.
I'm sure red could have released a camera like you describe, if the image quality and reliability (i.e. speed, skew and heat) weren't an issue. The MKII sensor is probably the best that currently can be done at that price point, when mass produced. Unfortunately, it's not enough for a professional video tool.
It's perfectly normal human behavior to always want more. But it also may make people loose the touch with reality ;-)