TBH, this feels like a libertarian mindset of "Everyone will try to lie and cheat you!".

Why should they lie? If their data had something different to their press release, lying and then getting caught (e.g. by a whistleblower) would damage their reputation. If their data shows it's bad, as responsible scientists why shouldn't they come out with the truth to protect the general public, and say "We'll continue work on the Omicron-specific vaccine.".

Unless you think their main motive is to boost their stock price in the short term. That kind of thinking should be reserved for people dealing with the blockhain-ponzi schemes.