This means it is essential for tissue repair. Also the production of neurotransmitters / cell signalling molecules.
Of course it improves recovery and reduces severity of symptoms. Of course it won't prevent anything.
I can't understand how there is any dispute.
You are full of nonsence. Of course it prevents scurvy ffs.
> This means it is essential for tissue repair.
This totally doesn't mean that. Vitamin C is cofactor and resource. It is used in bunch of processes, only some of it are for repair.
Your second statement doesn't negate my claim that Vitamin C is essential for tissue repair. It absolutely is, but of course that's not all it's essential for, and I did hint at this in the bit you didn't quote.
A lot of people are magnesium deficient too. Magnesium is known essential in over 300 enzyme pathways.
https://www.ncbi.nlm.nih.gov/pubmed/10796569
Vitamin C deficiency makes you more susceptible to the cold and severe infections.
https://www.ncbi.nlm.nih.gov/pubmed/16988135
Vitamin C has shown inhibitory effect in chickens for avian coronavirus.
https://academic.oup.com/jac/article/52/6/1049/731701
Chinese are testing intravenous Vitamin C for treating COVID-19 with promising results for reducing cytokine-induced damage to the lungs.
https://www.medicinenet.com/script/main/art.asp?articlekey=2...
I am really not sure why news organizations all around the world feel the need to debunk Vitamin C usage for novel coronavirus. For instance: https://www.snopes.com/news/2020/03/09/coronavirus-its-time-... . Their conclusions all amount to: washing hands is better, you may get a tummy ache, and don't believe folk remedies.