Should Atheism proper include scepticism?

[Purple Rabbit]

I echo Leo's objection. How do you know we don't have a central importance?

One possibility might be that no meaningful definition is given of "central importance". Without that the sentence "we have a central importance" cannot be assessed because the term “central importance” does not refer to an actual concept. And therefore to posit such a statement supposing that it does and that this referent exists in reality as something is an untrue positive declaration.