What are you talking about, e-ink is much nicer for things like this. An OLED produces actual light, and uses way more power. I wouldn't want an oled display on 24/7 in my living room.
Everyone defaults to it because it's really nice actually.
I think they mean that even an OLED display will actively emit light. When, in contrast, the e-ink displays shown in the linked posts are unlit. That, for me, is the key advantage making the device blend in.
Everyone defaults to it because it's really nice actually.