Fair point.
I should have also mentioned that when somebody doesn’t hammer it on the weights, they may actually have a better over-all blood flow and lower blood pressure for a day or so. This can help recovery.
Also, scientific journals have suggested parallel muscle fibers are faster than cross-bridged fibers.
If we put two and two together, we can suggest that not hammering it on the weights will not result in as many cross-bridged fibers compared to some one who allways goes heavy.
People who allways go heavy also get more tension in their body and mind and this can carry on for more than a day or two. (Some heavy lifters get a lot of physio - and need it.)
If heavy (above 80% of 1 rep max) weights have turned them in to a lump of granite, I might urge them to get down the pool, just for one day, for them to appreciate the opposite end of the spectrum. They’d feel better for it, and then they can go back to the weight training in next session. Swimming wont improove sprint speed, but it will help recovery and over-all work capacity. Not a training recomendation. Just trying to make a tense athlete experiance the benefits of blood flow in muscles that are not shortened and tightened as per’ heavy weights.
Fogelson does make a case for there usually not being as much eccentric loading on a machine.
So again, there is less wear and tear and therefor; quicker recovery from machine sessions.
Personally, I never rated extreeme loading in eccentric phases. (You know how some lifters talk about going extra heavy in a power rack, on the eccentric phase.) Sometimes I have had noticably better power improovements, from exacting the drive and
concentric phase, far more, than anything I’ve ever done with the eccentric phase.