It should not give you hope. It is one guy, that is, a sample size of one.
A test with a sample size of one has no validity. This means it should not give you any hope at all - it means nothing in your situation, and may mean nothing at all in any situation.
If we had 1000 guys use his protocol, and 1000 guys just continue to cruise without the hcg and hmg, and made sure all 2000 of them had a fertile female willing to let them pound away each day with no condom, then we could figure out whether his protocol actually makes any difference.
As it is, his female may have gotten pregnant without the hcg and hmg. There is no way to know.
Your fear about reduced fertility when blasting and cruising is valid - that has actually been tested with large sample sizes.