Are the Kanto SE4 and SE6 stiffer than the generic stands I purchased?

I purchased generic desktop speaker stands on Amazon thinking they should be all the same. However, they don't hold up to the seller's claim of holding up to 22lbs. When I put my KEF LSX II LT on them the slight upward tilt goes away as they bend under the weight of those small speakers. Worse, they are very flimsy, bobbing up and down. See Video.

I wanted to know if the Kanto SE4 and SE6 are sturdier? I like the idea of having more room with this type of angled stands instead of a single centered post. So, I would very much like the same type but in a sturdier version that doesn't bob.