Yes, there's a difference between people who question vaccines as a whole and... a fabricated reality/false narrative.
The survival rate is not 99.99%, and the outcomes for "survivors" are all too often debilitating. The demand on our healthcare infrastructure is potentially crippling, as we've seen.
There has been FDA oversight... indeed the vast majority of the time from development to release of the vaccines in the US has been getting clearance from the FDA (you may recall the J&J vaccine was even paused by the FDA).
...and the liability shield is due to the never-ending unjustified legal claims that companies are invariably subjected to when they operate in this space.
There's a difference between critical thinking bells and having your bell rung. ;-)