I've only skimmed the article but it seems to relate memory with aphantasia, which I haven't heard before. I'm a bit skeptical of this take.
Note that people aphantasia tend to score better at scene recall, at least in some metrics, than people without ("Those without visual imagery show deficits in object but not spatial memory" [0]). I think the idea is that people with aphantasia tend to build language "scaffolding" to describe relations rather than relying on a visual representation.
If true, this might be why people with aphantasia tend to gravitate towards some engineering and science disciplines.
There's a lot of people lamenting the loss of minds eye visual imagery but a potential benefit is to have a lifetime's practice of using language to reason and quantify relationships between pieces of knowledge.