I read the article.
We are splitting hairs here. I am still using 5/3/1, so I’m not exactly going in and training “light” during this cut.
I think he does well at debunking some various myths about lifting and cutting, but hardly states anything counter to what I’m proposing here. He states that lifting sessions should be 30-45 minutes and Wendler states that all the lifting done in the Prep/Fat Loss template should be completed in 45 minutes. There are more examples.
Of course volume(or tonnage to be specific) is the primary driver of mass accumulation, if it wasn’t, we would all train heavy singles and doubles for size. We don’t, we train more sets and stay in the 5-10 rep range for accessory work(BBB, BBS, etc). That doesn’t mean going to the other extreme and doing sets of 50 with kiddie weights is better, it means there’s an ideal volume range for size. A set/rep range that provides the strongest signal for growth. It makes the most compelling case to the body to grow if you will. Therefore, continuing to train in that set/rep range while cutting(even at the expense of some intensity) should provide the strongest signal to maintain mass.
Essentially what I was saying is that if one were to choose while cutting to go in and train fewer sets, and heavier (relative to the 5/3/1 work they’re doing currently) it would not be optimal for muscle retention. Clearly Jim also thinks this way and has built the Prep/Fat Loss template accordingly.
That all being said, I’ve also never been a huge Christian fan. He’s hawking bullshit supplements in that article even, which undermines his credibility in my eyes.
Check out the concept of Maintenance Volume from Mike Isratel PhD, he covers this topic fairly well: https://renaissanceperiodization.com/training-volume-landmarks-muscle-growth/