I have found a lot of people I know (who have excellent English, but aren't native English speakers) despise metaphors.
This is purely anecdotal, but I am married to a woman from Eastern Europe and I grew up in a schooling system that was primarily Cantonese and Mandarin speaking immigrants. All of these people had trouble speaking English in their formative years and became professionals with excellent English.
I will often use metaphors to describe things. For instance, when talking about a "stack" in computer programming, I go, "think of the plates in your dish cupboard". This works great with, say, my mother, who is an English speaker, she likes metaphor and simile. My friends and wife, they all go, "here you go again, stop using metaphors! Just tell me what's happening inside the computer. A computer is NOT a bunch of plates!"
This is a trivial example, but it actually happened! They did not want to discuss it with analogies or metaphorical connections!
This piqued my curiosity, I asked, "why don't you like metaphors?" and most of them responded, "it feels like you're talking down to me" or "I'm not a child you can use playthings to explain the world to, treat me like an adult or don't bother explaining it".
I asked them, "did any of my other behaviour make you feel like I thought you were a child?" and they responded, "no, not really, but once you started comparing things to other things, I got uncomfortable."
When we really got down to it, they all admitted the truth to me. Using the somewhat complex language of comparisons, metaphors, simile... it reminded them of how they used to not understand English very well. These comparisons would confuse them when they were younger. Other kids would make fun of them for not "getting it" quickly enough.
This remembered emotion made them hate my present-day metaphors and analogies. Explanations in what a native speaker would consider "clear and concise" were frustrating and uncomfortable for them.
Just a reminder to all of us, not everyone thinks in the way this article preaches. Some folks would prefer a more direct linguistic approach and find it more respectful, approachable, etc. As our populations become more diverse, it is more and more important to meet people where they are and where it best respects their lived experience.