Omicron hangs out in your nose, Delta goes to your lungs. Not moot at all.
If we all had been vaxxed and boosted, those delta wave deaths would not have happened. The cases, if they happened at all, would only have been omicron.
I think you’re on the right path. Omicron does hang out in your nose more than your lungs when compared to previous strains.
The rest is regurgitation of last weeks ‘science’.