Read the chart. Bigger difference in mortality prevention/severe disease prevention between the two vaccines on 2 dose but most importantly 1 dose. Given that most who got vaccinated (emphasis on the elderly) due to the 5th wave/vaccine pass for restaurants would've only had time to get 1 dose, would've been better if BioNTech was specifically recommended. There is no way someone who first got vaxxed once the first local omicron transmission happened could've gotten all 3 sinovac doses in time for the exponential spread.