This is just more evidence that Bridge doesn't belong in the Olympics, IMO.
Then there are in between sports (that rely on skill as much as or more than physical strength) do you want a blanket ban on a drug some people may legitimately use just to prevent some one gaining an advantage? I would say possibly, but it should be evidence based, it shouldn't be done lightly.
Further the drug testing regime isn't some casual, hand in a urine sample with your entry form. Its making yourself available at set times, just in case some one tests you, and then it's peeing in a cup in front of them.
Source: built the UK drug database and peeing in a cup scheduling system around 2004.
Is it because of the IOC links?
Back in 2004, I remember drugs were broken down into categories and almost all categories were either blanket banned, allowed out of competition but not in competition, or allowed. Very few categories (possibly only beta-blockers?) had a more complex classification. While that was 15 years ago, I think the system is still similar.
Naively, I would hope that the Bridge governing body would get the stakeholders together with medical experts to come together to decide on a sensible list. That doesn't seem to be the case, I'm guessing it's (lack of) money?
To me it seems obvious that performance enhancing varies from sport to sport. Why did this not occur to the IOC/WADA ???