Frankly I don't think it really shows at all on its own at least since it may simply be a matter of Clayton Cox covering his butt by not just officially making the decision on his own. (Plenty of organizations tend to work that way in practice where someone doesn't want to take heat if they make a decision that ends up pissing off the wrong person of getting a problematic reaction without being able to say others were involved in the decision.)The issue is that the DNC even had to vet such an obvious scumbag which shows how stupid/unethical some of their members are like Regional Director Clayton Cox. Sad that you couldn't figure this out from the emails.
Clearly the description of the specific email with original quotation associated with the link remains inaccurate and misleading.