Because what confuses me is that it sounds like a person is supposed to do anything they can to find out if something is wrong, then if something is wrong then it calls the entire body of work into question.
In science that is pretty much what you try to do. Science advances by finding out what is wrong with current theories, but it usually only refutes one part of the body of work.
The mistake Creationists make is in thinking that proving one theory wrong adds weight to some other theory. Don't work like that.
Anyone so limited that they can only spell a word one way is severely handicapped!