Most of the article seems to be about missing what is there in direct sensory experience and not noticing what's missing in imagined experience.

I'm not sure where this is heading, though my snap reaction is "Why are you worried about living in a simulation when you're already living in a low-rez simulation?"

One clue pointing in these directions is what people are willing to accept as immersive art. Why can people call a video on a screen plus stereo "virtual reality"? How can reading fiction be so engrossing that everything else gets forgotten?

And one more small fact on the sensory front-- The Dance of Becoming by Stuart Heller has a little experiment of observing one's reactions to horizontal and vertical lines. My results were, as predicted, gung V qerj zlfrys hc va erfcbafr gb n urnil iregvpny yvar, naq qvqa'g (V'z abg fher jung, vs nalguvat, V qvq qb) va erfcbafr gb n urnil ubevmbagny yvar.