There is a significant difference between the situation of the Russians at Wimbledon and Djokovic at AO: Djokovic is a 9-time AO champion, while none of the current Russian tennis players (I speak about male singles) have ever advanced to SF Wimbledon. And only Khakhanov once achieved QF participation. So while the ban of the Russians in Wimbledon was a bigger quantitative hit into sports competition, deporting Djokovic from Australia was a bigger qualitative hit.
You're going superfluous, we all know here what you detail, that from the most linear point of view is understood, but in the end we are talking about players being prevented from participating for not complying with certain requirements that many (rightly or wrongly) find discriminatory, illegal, authoritarian and unsportsmanlike, which obviously goes against the essence of sport.
That is the main crux of the matter, the core of the problem, we cannot unequivocally criticize somewhere because our favorite player has been affected, and on the other, look sideways, that favorite player says "that he does not agree with the decision made by the tournament" but at the same time, participate in it as if absolutely nothing had happened and maintain a moral composure free from criticism.
It doesn't work like that, and we should see the big picture of what is happening with a sports discipline, that is being sullied by decisions that undermine fair play and threaten a free society with values, a fundamental base and inspiration for future generations.