These particular relevations aren't particularly exciting. The fact that they originate from Russia suggests they might be diversionary tactics.
But there is a bigger debate to be had about TUEs, transparency and an athlete's right to privacy.
Ross Tucker (not everyone's favourite person I know) said yesterday:
So we have Door #1 - genuine medical issue, needs TUE, but should the athlete be competing? I'd say in many cases, "no". Like chest infection
Then Door #2 - no medical issue, so TUE is exploitation of loophole, no different to doping, which should be illegal.
Either door, problems
If you need medication to circumvent the performance constraints that your body imposes (eg bronchial spasm in response to exercise stress) then it does look a bit dopingish.