It's very good overall.
The best parts of her piece are observations on the ITF's lack of transparency, including some choice quotes from ITF anti-doping boss Stuart Miller:
'The ATP and WTA tours and the ITF prefer not to comment on the topic [doping], even when attacked. They rarely reply to questions with any clarity or detail. When asked whether maintaining public confidence was an important aspect of the program, for example, Miller supplied a boilerplate response. "Questions are answered and perceptions are addressed to the fullest extent possible within the constraints to which the [tennis anti-doping program] is subject," he said. "Nonetheless, those constraints provide opportunities for speculation, and there's only so far that the responses can go to respond to that speculation. In any case, decisions will be made in the interests of having the best possible anti-doping program within existing constraints."'Tandon also touches on loser-targeted testing and the lack of out-of-competition controls. However, she doesn't mention Serena Williams's "panic episode."
Tandon also gets another awesome quote from Miller about the ITF's investigative powers: "The ITF has the power of investigation and has exercised that power on occasions. The details of those investigations are subject to confidentiality requirements."
The one main quibble I have is that she does not address the ITF's disclosure policy on provisional suspensions and tribunal decisions. Specifically, the ITF's policy of publicly releasing information (e.g., test results, provisional suspensions, tribunal decisions) only in the event that a player is found to have committed an anti-doping offense.
This needs to change. All provisional suspensions and tribunal decisions should be made public.