I think this is a misread. Management is getting the blame in this article for making everyone worse off including themselves.
The unions aren’t being blamed at all in this for the strike. If anything their commitment is credited with bringing AMPTP back to the table early.
The article links back to earlier reports from May that AMPTP had a deliberate union-breaking strategy, and planned to refuse to negotiate or to come to the table before late October.
It’s not anti union to point out how management bad faith behaviour and refusal to negotiate is negative for an industry and the broader economy that surrounds it.
Strikes are a blunt and costly tool, but an essential tool. When they last for months as this one has, and one party has been refusing to negotiate on many terms for even months before the strike, everyone in the industry suffers. One of the key points in this article is that AMPTP has managed to lose the PR war of this strike, as they very much deserved.
CNN has been consistently reporting on how the AMPTP has been refusing to bargain, and it’s in this context that it’s weighing the costs of the strike. In comparison to the Hollywood-based media that are owned by the content conglomerates (e.g., Deadline) this is much more neutral reporting.