When the fundamental premise of any concept or argument is considered singular and without opposition, any logic borne of such a premise is invalid if presented as any sort of truth... or even logic. Like saying someone is the greatest player because they have amazing statistics without noticing they play on a team that has no one else to turn to... big fish, little pond does not make the big fish the best ever. Anyway, when there is a mass delusion, when even the people who do not believe in the singularity of the initial unopposed premise (like we must have a reason or purpose to enjoy a wonderful life and not have said reason or purpose is some sort of horrible panic-attack calamity) such as Pascal's, too many heads nod in silent agreement without even realizing what they did. An argument based on delusion leads to logical stupidity.
But then, ignorance is only bliss if you accept the ignorance is momentary as we experience life as momentary and it is not a shameful horrible torturous calamity.