It's obviously possible that this is a bad nowcast (as argued in Edit2 of the parent), but there are other possibilities. I suspect the % of tests that are of

It's obviously possible that this is a bad nowcast (as argued in Edit2 of the parent), but there are other possibilities. I suspect the % of tests that are of asymptomatic people is much higher than a few weeks ago, because of travel plans and publicity around omicron. If omicron does produce milder symptoms (either inherently or because more omicron cases are breakthrough and mitigated by vaccination) then it could be that a higher proportion of omicron cases are now being tested (and some fraction sequenced), relative to delta, compared with a few weeks ago.