Earlier quoted context omitted.
You exaggerate, but actually, this is a good reason to avoid accusing people of lying unless you understand the situation pretty well. Honest mistakes do happen a lot.
It doesn't matter if the individual people at MailChimp were liars. What matters is that the institution as a whole - the way their policies and procedures come together - lied. The institution certainly knows of it's capabilities. It deliberately chose to not tell that to it's CS reps, because of a multitude of reasons, that come down to 'It makes our/their jobs easier.' My ISP, for example, lies to me every time I…
"It doesn't matter if they're liars"
C'mon, man.