We have known for a while that type of exercise intervention (e.g. intensity, frequency, etc) does not seem to influence self-reported outcomes such as pain. Maybe all the benefits from exercise are explained by non-specific effects, or maybe exercise has benefits that do not depend on the type of exercise.
In this episode, I discuss 3 studies that look into (at least partly) other benefits that we may see at the level of the muscle and tendon from higher-load exercise interventions.
References:

Do psychological, cognitive, and contextual factors influence rehab outcomes in Achilles tendinopathy?
07:27

Proximal Hamstring Tendinopathy - the forgotten tendinopathy
24:56

How useful is palpation for diagnosis and assessment?
14:30