I think "cautiously optimistic" on a relative basis is a reasonable stance to have at this point. That does not mean anyone is popping corks, or saying this is "over", or suggesting that there won't be more difficult periods in the future. Nor is it drawing any "conclusion", preliminary or otherwise. It's a merely an acknowledgment that omicron seems significantly less virulent than other strains (as demonstrated by numerous other countries) combined with some initial hope that this strain may help with immunity against others'. I don't think it's jumping to conclusions nor is it a green light to go out and take silly risks.