The trend towards bio-identical hormones isn't very new, although the so called "wiley protocol" is, at least to me. As far as I understand going through the site, "wiley protocol" is nothing more than a trademark for the promoter, Teresa S. Wiley. I wouldn't be surprised if that's the sole source of her income (peddling books to gullible physicians and consumers).
Any doctor can prescribe the same drugs and get the same results, which assumes a slow rate of absorption through skin resulting in "overdose." Yeah, like the body does nothing with the hormone, what, so, ever. In a nutshell it's cycling the dosage to mimic the monthly cycle (what they call "Rhythmic Living").