I never heard the term reverse triage.
It was always about urgency to see a doctor for us and then the doctor would decide for the treatment and would himself do another triage.
That meant that in the first step the doctor would check out the most sever people first, but that didn't mean that they get the treatment first.
i.e. the most sever possible case is someone who needs to be resuscitation CPR, but the survival chances are so low and it is so intensive on personal (at least 3 people spending 30min before you can reliably declare death), that the doctor might check him out first, but then decides to treat another person, who is actually able to be saved, with higher priority.
The initial triage of who sees the doctor first is not the same as the decision later about who actually gets the treatment first.
And in the case of CoVid, you don't want those contagious people in the same building as others in the first place. So the question of triage doesn't really exist. They don't let them be in the hospital longer than absolutely required. They do not sit together with other people waiting to see a doctor in a hospital which is naturally full of weak and vulnerable people. CoVid infected people are just in the hospital to get the diagnosis and then they get locked in at their home here, till they actually develop an illness that needs and can be treated.
Here in my city there are four hospitals and in case of a more sever outbreak, one of them gets completely focused on CoVid while all others continue business as usual. Until now, having an seperated section for CoVid was enough.