Data released is with what was present, in time we'll get for the rest as well... Omicron right now is too new to actually know effectiveness...
Can you please elaborate on exactly which study are you referring to and your reasoning to accuse it of being "terrible"?
Meanwhile, we've endured at least two strains which are significantly different than the original 2019 Wuhan strain, and thanks to the vaccine the mortality risk has dropped to residual levels.