Larry Olubamiwo used certain steroids, EPO, IGF-1 and other doping products

The boxer Larry “War Machine” Olubamiwo administered several anabolic steroids, HGH, IGF-1 and other related drugs during 6 years. However certain tests have been conducted earlier, he was caught just in January 2012. After a fight against Sam Sexton Larry Olubamiwo tested positive for prohibited medications. Metabolites of steroids were not found in his sample. The boxer tested positive for EPO. EPO is a blood boosting medicine.
Long-term application of prohibited medications by Olubamiwo was a real embarrassment for the United Kingdom Anti-Doping. Andy Parkinson, the CEO of the UKAD, tried to prove that the ban of Olubamiwo for administration of 13 different forbidden products is a real success of the UKAD in the struggle against doping.  
Andy Parkinson affirmed that it was an unusual case. The boxer used steroids and other related medicines for prolonged time without fear to destroy his health, career and reputation. He was sentenced to 4-year ban.
But the alarming fact is following: Olumamiwo could avoid detection for long time, despites great efforts of anti-doping officers to “clean” sports from administration of doping preparations.
Olubamiwo was caught only because the UKAD was informed by the United States Drug Enforcement Administration (DEA) that he was implicated in an investigation related to illegal sale of anabolic steroids and other doping drugs in the US. Then the UKAD conducted a test which resulted in positives for EPO.
Robert Smith, the General Secretary for the British Boxing Board of Control, supported the statements of Andy Parkinson about efforts and success of anti-doping agencies. He affirmed that the case demonstrated that cheating couldn’t be hidden.
What is your opinion about the case? Do positives for EPO and the suspension of Olubamiwo display that anti-doping officers succeed? Or does the case manifest that anti-doping system is not appropriate?
Everyone may make own conclusion. But it is clear that the sportsman could apply various prohibited medicines for six years without being detected by anti-doping officers.