The real question that comes to my mind: is this article using "learning" and "memorizing" synonymously. If read something I can mentally recall the entire page and the information on it for several days, but I can't remember anything I hear verbally unless I repeat it back a few times or write it down. I am a stong advocate for name tags! LOL
I do feel that people may differ greatly in the ways in which input becomes memory best for them, but I believe that memory and learning (in the understanding sense) are not the same.

For me the only way to really "learn" is to figure it out myself: reading, watching, and hearing all come up short when I'm facing the understanding a new topic like math/physics. I must organize information in my own way (usually down to the minute details), which rarely is the way others present it.