Without brightness you don't have better images.
This is subjective and your opinion. It also matters the range you're talking. The SDR on this display is, in my opinion, a "better image" than any FALD is capable of currently. It definitely beats the SDR images on the ProArt (the ProArt was fine, but it was either a choice of blooming or less cantrast, and the perfect blacks and viewing angles on this can't be beat for SDR content).
Now for HDR, I'd agree with you FALD is going to be better because of that extra brightness headroom. I never argued against that. I still think OLED can be pleasing and the extra contrast helps with that, though.