Perhaps straight from the horse's mouth?[2]
Or is the issue more with the claim they're a union-busting law firm? Because they even basically claim that on their website.[3] That said they otherwise look like not a terrible choice though as with all things like this the optics to something like this are incredibly sensitive.
[1]: https://news.bloomberglaw.com/business-and-practice/activisi...
[2]: https://investor.activision.com/news-releases/news-release-d...
[3]: https://www.wilmerhale.com/en/solutions/labor-and-employment -> Executive and Workforce Training:
"Throughout the United States we offer a wide range of customized training programs and workshops at our clients’ premises, as well as seminars and innovative programs adapted to clients’ specific needs. Our training programs include: providing a legal-psychological perspective on managing employees through effective communication; preventing, identifying and dealing with sexual and other unlawful harassment; *advising on union awareness and avoidance*; dealing with violence in the workplace; managing the interaction between the FMLA, ADA and workers compensation; enhancing interviewing skills and hiring while minimizing legal risks; and understanding restrictive covenants (e.g. non-competition agreements). "
"Activision Blizzard Inc., a video game maker coping with an employee revolt over claims of sexual harassment and discrimination, has hired Wilmer Cutler Pickering Hale and Dorr to investigate its corporate culture"
Did you want AB to get through this without hiring any lawyers? Because that isn't how the business world works. Lawyers are in charge of this country and they have a way of making themselves necessary.