Would it be fair to summarise that post as “they’ve cherry picked the graph to make it look worse than reality, but their point still stands - productivity growth hasn’t trickled down to most workers” ?

https://www.epi.org/publication/understanding-the-historic-d...

The assumption being that the rise in productivity was a diffuse one instead of the much more plausible concentrated one between international competition routing uncompetitive sectors and over regulation stymieing the continuance of tradional high paying jobs like construction, general failure to maintain public infrastructure.