Personally, I think that "The Wirecutter" contributors are a bunch of shills. Relevant case in point here, I have on my desk a Herman-Miller Flo Dual for my two BenQ 27" displays and a Flo Plus with a VESA laptop mount for my rMBP that will be holding my new VESA 27" iMac when it gets here.
Nitpicks with The Wirecutter's "recommendations":
Nitpick #1 - the architectural supply company that sells them locally discounts the arms 20-40%, I've never paid close to retail - I paid $160 for the Flo Dual
delivered, $40 less than the single arm Flo they cited. Nitpick #2 - the mounting plate is metal and not plastic, as are all of the components of the arm and mount; only the organizers and mount cover are plastic, and they are attractive and complementary in appearance. Nitpick #3 - I have all three arms mounted to an unfinished wood tabletop, and have had zero issues with stability. I own/run a small company, and there's maybe 40 of these arms in my offices with 24"-to-32" displays attached and we've never had an issue with stability with any of the arms or mounts, ever, going back to 2010

. And, Nitpick #4 - their statement "and doesn’t provide an option for very tall people" -
I'm frickin' 6'8" in my shoes and standing on a pad at my standing desk, and the top of my portrait 27" BenQ (Flo, home) or 27" Dell (Flo, work) and rMBP (Flo Plus, home) can put the top of the displays over my head; I'm 4"
taller than the tallest goombas in their "evaluation"; the same can be offered by me at sitting desks in my offices.
The "but we don’t trust this mount with a valuable monitor" bit just doesn't fly with me. I've got more than $30k of Eizo/BenQ/Dell displays on H-M arms with no issues whatsoever. I'm not picking nits with you, nor am I extolling the purchase of the H-M Flo arms over another brand (with a caveat, to follow), but I've seen too many "reviews" by The Wirecutter that recommend crap with Amazon links, products that are "the best" that I've owned and grenaded, I just don't trust any product they recommend.
Now, my nitpick with the quote. Arms like the Flo Plus are designed for heavier objects, which is why I purchased the Flo Plus for my VESA iMac. The Flo is designed for displays/tablets (up to 20 lbs±) while the Flo Plus is designed for 21-40 lbs. I have 7 VESA iMacs in my offices on Flo Plus arms - again, with zero/nada stability issues. Cheers.