Caller-out in a sentence as a noun

Is there literally no possibility that he misunderstood something, or that maybe the caller-out from the ad agency is themself leaving something out? People are so quick to label and name-call when we can hardly say we really know anything about the situation for certain.

Caller-out definitions

noun

a person who announces the changes of steps during a dance; "you need a fiddler and a caller for country dancing"

See also: caller