The article sets out with an urban legend that doesn’t hold water:
> More time is more tension; more pain is more gain.
While this meta analysis [1] found that:
> Results indicate that hypertrophic outcomes are similar when training with repetition durations ranging from 0.5 to 8s.
Maybe author should have chosen the amount of training resistance for the intro allegory (perceived effort?). This would have made their point just as well.