I don't think the advice to avoid contacts as a baseline recommendation is the takeaway of the comment you replied to, that advice pertained to that person's specific medical situation.
Also, personally, I don't believe it's the type of screen that's problematic for long-term eyesight. What my optometrist told me is that we weren't really evolved to be looking at things close up for long periods of time.
I don't think e-ink versus backlit screen is the issue – certainly, our eyes take in a lot more ambient light from not-screens during the day compared to the weak little LED light on our screen.
The real issue is spending 8+ hours a day focused on close up objects. Take frequent breaks where you are looking in the distance, go on walks, etc.
Remember to listen to your doctor over random people on the Internet, including me.