Can you elaborate please?
The mechanical properties of the equine hoof capsule are plastic, not elastic. As such, the capsule, under load, will distort in a manner similar to that of bone. This is a fundamental rule of bio-mechanics called Wolff's law.
The hoof capsule is subject to the ground reaction force which opposes the equine phalangeal lever. As that lever length increases, so too does the ground reaction force. As the capsule distorts, structural integrity is eventually compromised and the wall fails under load.
Trimming can reduce both the ground reaction force and the mechanically induced distortion. It also reduces the structural integrity of the capsule. There is a balance between finding optimal phalangeal length and horn linearity without compromising the minimum structural integrity necessary for the capsule to bear load. Exceed that minimum balance requirement and again, the wall fails.
You can trim more, trim less, trim with greater frequency or not. There's no getting around the basics of bio-mechanical physics. Ultimately, it becomes irrefutable that some domestic horses, in use, will benefit from more than just a trim.
Horse owners recognized this need more than two thousand years ago. As much as some would have you believe otherwise, little of that fundamental need or the practical means of addressing that need has changed.