Instead of changing the balance in favour of the unions, prohibiting employers to use scabs brings the forces back into balance to a point that favours more reasonable negotiations where both employer and union work to quickly find a common ground, develop relations that will enable them to reconcile their divergent interests and find solutions that reflect their convergent interests.

Based on the paragraph above can we conclude that "Denying employers from using scabs is what allows the union to be more level"?
Yes