Edith Cowan University research revealed that muscle strength benefits are seen with consistent, short exercise sessions. Participants performing a three-second eccentric bicep contraction thrice weekly saw strength improvements. Daily 20-minute exercises might be more beneficial than a single 2-hour weekly session. Regularity, even in short durations, is key to health benefits.
I understand what you mean, you would have liked other criteria tested and proven so you can take the information for more than just getting stronger.
I have a feeling though that the overall lesson here is that continuous volume over a week is better because it simulates the environment we are suited for, and anything that allows the body to thrive is probably going to work out mentally as well.
Whatever workout regimen works for you, is always going to be better than not working out because you tried to do a thing you hate, even if it's not the best at anything.