Positives of Larry Olubamiwo for EPO

The heavyweight boxer Larry “War Machine” Olubamiwo took some anabolic steroids, HGH, IGF-1 and other related drugs during six years. Although some tests have been conducted earlier, he was caught only in January 2012. After a fight against Sam Sexton Larry Olubamiwo tested positive for banned preparations. Metabolites of steroids were not discovered in his sample. The boxer tested positive for EPO. EPO is a blood boosting medicine.
Long-term intake of prohibited drugs by Olubamiwo was a real embarrassment for the United Kingdom Anti-Doping. Andy Parkinson, the CEO of the UKAD, tried to note that the ban of Olubamiwo for application of 13 various forbidden preparations is a real success of the UKAD in the struggle against doping.  
Andy Parkinson confirmed that it was an unusual case. The boxer took steroids and other related drugs for prolonged time without fear to spoil his health, career and reputation. He was sentenced to 4-year ban.
But the alarming fact is following: Olumamiwo could avoid detection for prolonged time, despites essential efforts of anti-doping officers to “clean” sports from application of doping medicines.
Olubamiwo was caught only because the UKAD was informed by the United States Drug Enforcement Administration (DEA) that he became the target of an investigation connected with illegal sale of anabolic steroids and other doping drugs in the US. Then the UKAD conducted a test that resulted in positives for EPO.
Robert Smith, the General Secretary for the British Boxing Board of Control, supported the affirmations of Andy Parkinson about efforts and success of anti-doping agencies. He affirmed that the case displayed that cheating couldn’t be hidden.
What is your point of view about the case? Do positives for EPO and the suspension of Olubamiwo display that anti-doping officers work successfully? Or does the case display that anti-doping system is not proper?
Anyone may make own conclusion. But it is clear that the sportsman could take various forbidden drugs for six years without being caught by anti-doping officers.