The NLRA was a response to militant labor organizing. While it seems like a capitulation at first, in reality it was a coups for ruling class interests and the bosses. Under the new regime, organized labor became much more legalized, entirely under the control of the anti-labor government, and could be robbed of its more radical elements that pushed for escalatory direct action, sympathy strikes, and wider coordination. The NLRA emphasized the worst aspects of trade unionism while weakening the best.

So basically, yeah. And here's hoping to its delegitimization.