That being said and since you know so much on the subject then maybe you can clear this out for me:
How comes the U.S. and U.K. secret services COULDN'T hack the Silk Road website?
You're still not getting it. Security is entirely unrelated to Tor.
Silk Road's security is in no way any different from any site hosted on the regular web.
The only difference is the anonymity. Which indeed came into play when they were trying to catch DPR.
But hey, let's do a car analogy.
You might as well ask why a bullet didn't go through bullet proof glass on a Mercedes, and then ask why we don't use a Mercedes instead of a BMW.