I don’t think the Mapbox unionization story is over. Last week the Mapbox Workers Union accused Mapbox of retaliating against union organizers, several of whom, they say, have been abruptly fired. Retaliation is against U.S. labour law, and they’re filing unfair labour practice charges in that vein.
Previously: Mapbox Union Drive Fails; Mapbox Employees Trying to Unionize.