> If you can find some specific scientific argument why e-ink is "an essential requirement" (besides personal choice) then it's just cargo cult.

That's not how science works, and your comments are abrasive and offensive for no good reason. Things exist before scientists can prove them, and that's why research is done.

Although a quick Google search led me to find a paper backing your argument, I find you way too quick to dismiss other readers as doing "cargo cult". Why not believe them when they say they feel less strain?