ok, then why would it be wrong for a consultant to accurately discuss non-proprietary research unrelated to any client in a public forum?
Given that Civis specializes in left leaning political clients (including the biden campaign), I think it's pretty safe to the tweet wasn't unrelated to at least some of their clients' interests.
not in a consulant/client's context of interest. like i don't know for sure, but i think it is very unlikely that he posted information or opinions that he was paid a client's money to research, and there is essentially no suggestion anywhere that that was the nature of the complaints registered by clients.
yglesias already spelled this out, but the complaints centered on him thinking and expressing something the clients felt he should not think or express, even though it is supported by quality data and analyses.
my understanding of the central thesis of yglesias' piece is that it is unhealthy for an ideology to be unconcerned with the accuracy of the precepts they espouse (and i agree, obviously).