If you knew anything, you’d know this isn’t the reason why getting vaccine approval takes so long. It takes so long because there’s a mountain of bureaucrats, lawyers, researchers, and money required to get stuff moving along. Vaccines are pretty low the totem pole for companies and the government to give a shit about, since they’re usually about prevention and not treatment. Companies and the government can’t throw everything at a vaccine to approve. The only reason the covid vaccine was streamlined was because, you guessed it, we were and are in a global pandemic. Nothing about the approval of vaccines was abnormal, it still took nearly 2.5 years.
Nearly every city on the planet with a subway system disputes your bullshit.