Similarly, immunity to omicron might not be good at the other variants (which are worse for you), which is why reusing the existing boosters instead of making new ones isn't that bad an idea.
I think your first sentence is a bit premature considering the study. Its forgivable to post this because it's so early but seriously, this was done in test tubes.
"One major caveat of the current study is that we used an in vitro assay system and the pseudotyped viruses but not the real viruses were used in the assay."
"One major caveat of the current study is that we used an in vitro assay system and the pseudotyped viruses but not the real viruses were used in the assay."