Those folks had short memories. Even after Camille, Frederic and Alicia weren't that long ago and made landfall with closed eyewalls. At any rate, Delta likely will not be a good example of a closed eyewall at landfall by any stretch. Unless 2020 deals to us something completely wack.
I forget which piece of research it was and it’s probably a decade old, but the conclusion that I read that stuck with me is that upon approach, weak hurricanes tend to strengthen the most and strong hurricanes tend to weaken the most and 85-95 knots is kinda the sweet spot for the NGOM