I mean...they aren't even knock-offs....they are slightly in the manner of. I think they just did a bulk buy for all their properties.
In a $2 billion complex actually designed by Mies (right down to the signage fonts, which has also been cast aside), you'd think they could splurge for a few genuine Knoll produced Barcelona Couches. They are well made and can withstand plenty of abuse. I saw a retired one from the AGO for sale at a vintage store and after many years of use, it was a bit worn but was still perfectly useable.
The problem isn't that they are just too cheap...it's that they are just sadly blithely unaware of why it's wrong.