While there is actual physics involved in designing chamber geometry, none of that is in play in this discussion, just personal anecdotal observation. Maybe the reviewer is on to something, maybe he's the 7th son of a 7th son just trippin' out on shrooms.
There are articles on the physics behind pipe chamber geometry and how it affects performance, tobacco burning, etc. Good luck finding them, as they were a part of the long gone "A Passion For Pipes" site that Neill Archer Roan lovingly nurtured until he closed it. You won't find much on the Wayback Machine either, as Neill locked the site. While I have copies of the material, it's copyrighted so I'm not going to distribute it. I have enough of an issue with people feeling entitled to steal my work. Likely, somewhere, out there, someone has illegally published this material so go and find it.
The pipe smoking world is largely medieval in culture, rife with mythology, folklore, superstition and flat out BS. That's part of the fun. For my part, I haven't found the wide chamber VS tall chamber to be valid. I can smoke just about anything in anything and get a fine enjoyable smoke. I find that some blends smoke a little better in a larger chamber, others work well in a variety of chamber shapes and sizes. I know how to slow smoke, which is when I get the best flavors. Slow smoking is a useful skill to develop.
Good luck with your explorations. Be careful not to sail off the edge of the world.