collective organizing allows management and labor to come to the same table and hammer out a broad agreement based on both perspectives' priorities.
If remote working was a point on the collective organizing table then management would be able to request mitigating actions to compensate for whatever they felt was lost because of WFH.
This, on the other hand, is a single issue action, which involves no bargaining and places demands from 1 side without a corresponding opportunity to mitigate negative effects.