Culture there is different. Going against the .gov isn't as ingrained in their brains as us bratty colonists. falling under the monarchy and empire makes them more willing to be subjects than citizens. Same with Canada.Maybe not everyone got jabbed that said they did.
Some may have thought it better for the illusion that they were onboard, than actually have a treatment injected into their bodies.
It's hard to believe information about efficacy and possible harm wasn't known to management types in companies selling injection doses in the early days.
"Theater" doesn't just take place on Broadway or in Hollywood.