The author fails to consider one massive advantage QD OLED has over LG's panels: uniformity. LG panels historically were plagued with uniformity issues - especially in the larger panel sizes. Colour staining - e.g. a yellow vertical band clearly visible on snow scenes or black & white content, was commonplace. Consumers having to go through a tedious cycle of RMA returns before getting "a good one". (I know, I've been there!).
Also visible vertical banding on near-black content, manifesting itself clear on dark scenes in movies etc. Very off-putting indeed. Posterization due to inadequate colour gradation, was also common. And of course washed out very bright colours due to the white LED used to increase brightness inherent in the LG panel technology.
Now, all credit them, LG have made great strides to improve the tech and alleviate these issues. But sadly to some extent these issues still exist.
One of the HUGE advantages of QD OLED - for the THE main advantage - is that it eliminated all of the above issues. For the first time, I received a panel with my Sony A90J that was effectively "perfect". No staining whatsoever, no near-blank banding, no vignetting (forgot to mention that one), no posterization, no washed out colours. Just better.
I have never experienced this with any LG panel. They all suffer from some of the above to some extent.