Eating does involve a bit more than just taste however, and is a problematic issue I've had to deal with most of my life.
I should admit up front that I have the opposite problem as to the article being discussed.
I've had no sense of smell since age 3-4, and so there is a significant class of foods I simply can't taste at all. The texture of the food determines completely my enjoyment of eating it and even my ability to eat it.
For me a steak tastes about like cardboard, and the less well done it is cooked the worse it feels, which of course directly relates to how healthy it would be as burning the nutrients out can't be a good thing, despite the fact it changes the taste not at all for me to do so.
Green veggies tend to feel like between I'm chewing a corn husk and I'm trying to swallow semi-liquid slop that my body feels should already be going in the other direction. The phrase "choking it down" can be quite literal in such cases for me.
The main difference here I would imagine is that a lot of people dislike eating such healthier foods so instead of spending the (not insignificant) time to find the gems they do like, they fall back to crap food that gives a "full" feeling - while I personally take the equally unhealthy route of just simply not eating often enough thus avoiding the unpleasantness for similar reasons.
It's taken me a good 15 year period to actively try different and new things prepared by many different people other than myself to find those gems, and similar to applying security to IT it is one of those things that is on-going and never ends.
I can completely see why that prospect would be so overwhelming to some, as I was (or potentially still am) in that same camp.
When thinking of your next meal fills you with dread due to all of the horrible aspects of doing it right without a single positive in sight, falling back into comfort mode is terribly easy to do and can take as much constant effort to break out of usually attributed to the weakest willed of addicts trying to stay sober.
The advice "Meh you just suck, it's super simple!" is about as twisted as a slinky and as truthful as a politician.