I don't disagree with this effort, but I'm a little surprised it wasn't one of the slightly more abusive/hardline of the FAANGM (that is, specifically Apple or Amazon, or perhaps Microsoft) staff first.
Obviously biased, but I tend to agree. My experience with unions is not with them as a partner to the company and advocate of shared success. My experience is them as parasites that hurt the business and the customer, and may (may!) help employees. Out of the dozen or so cases I’m familiar with, only my brother in law loves the union and he does not work like most devs I know; he goes job site to job site for short to medium engagements.