Opinion...marginal efficacy. My wife likes Topy on the bottom of her shoes, and for the ones that are "pump stitched" it's probably a good thing.
But for me...and again, my opinion only and probably skewed by what I do and have access to...the bottom line is that leather outsoles are meant to be worn away and replaced. At some point in time, the techniques that evolved and became preferred among bespoke makers were the ones that allowed a relatively easy and straightforward regimen of maintenance and repair. I expect to replace my outsoles on a regular basis.
It's part of the price for owning fine things. A philosophy of care and inspection and attention to detail...sounds like simple "awareness" to me.
Of course, it becomes more difficult and expensive when the shoes can only be repaired by sending them back to the factory--a big "gotcha", that one.
But it begs the question...at least for me...if we cannot be bothered with the expense and hassle of leather soles, such that we have to cover them with rubber to protect the leather or add chunks of metal to compensate for inattention, then why not "skip the middleman", as who should say, and get rubber soles in the first place? Extend that perspective to its logical outcome and entirely rubber or vinyl shoes are the only rational choice.
That or steel overshoes.
And don't get me started on the way that gait affects wear patterns.
I guess it all comes down to priorities and what works for you.