Lower and Upperbody volume for comp lifts

Is there a reason why some BBM templates have lower volume and higher intensity for bench compared to squat and dl? On Strength III for example there is 15-25 reps on the comp lifts @ 76% of your 1RM in sets of 4-6, whereas for bench it’s 12-20 reps @ 80% in sets of 3-4. Is it just “this works better”? I lot of other people seem to think the upper body needs more volume (for example I’ve spoken to people using the new RTS adaptive templates and they’ve said there’s higher volume on the upper body than lower body)

Just as we’d expect some people to need higher volume for their upper body lift(s) to progress, we’d expect some to do well with lower volume. That said, the total weekly volume for upper body work is higher than lower body work on that particular template.

Some exposure to higher intensities can be useful and within the context of that program, it seemed to work a bit better that way.