(Both do need either the front light cranked or a lot of ambient light to get that vibrance. They kind of fade a little in lower light without the front light)
I don't hate the idea of better progress in rLCD. I'd be pretty interested in a steam-deck-like that worked well outside in harsh sunlight. But I have a hard time seeing it match eink in contrast for static content. E-ink has a lot less ground to cover to get to "flawless".
The video is in the fastest mode. The comics are in the slowest, regal mode. You're going to have to manually tweak different apps with different content for the best results. But I really like what the color adds.