Do you have any examples of other ADAs and ADOs meeting these higher standards, or can you point to where the WADA Code obliges ADAs and ADOs to go above and beyond standard prosecutions based on analytical findings?
Once the labs return an AAF, the ADAs and ADOs are not required to do any further investigations -- the burden shifts to the athlete. That imbalance is explicitly provided by the WADA Code.
Who said things like "pro forma" and "not seriously"? This looks like your imagination.
1) Is not required under the WADA Code, and does not impact the arbitration process or outcome.
2) Interesting. I would actually agree with increasing the burden on the anti-doping organizations, e.g. requiring all ADAs and ADOs to do such lengthy investigations to prove exogenous doping actually occurred, rather than make weak arguments relying on statistical probabilities across the nation, and improperly applying general probabilities to specific cases. Note that WA and WADA does not appear to have made such lengthy investigations comparable to USADA's non-analytical investigations into Armstrong and Salazar, and that Armstrong and Salazar were able to compete/coach until USADA's detailed investigations were complete.
4) This presumes the CAS Panel got it right, while the original arbitration didn't. If the exact amount matters, that should be made explicit in the Code, rather than subject to whimsical and unpredictable decisions made by arbitration panels.
5) It doesn't matter to the process or outcome what USADA/Tygart says after the arbitraion decision. It's also not clear whether Tygart was talking about whether Knighton simply had his "due process" or whether he agreed with the outcome.