@Woofgang - Thats a fine and dandy way to view the bible. You and society are to be commended for being more sensible than the rest of us.
Whilst you might have an enlightened approach to the books that underpin the tenets of organised religions, not everyone who believes in those religions has the same enlightened view.
Organised religion might have the capacity to adapt, but the pace of adaptation is glacial. And disagreement over matters of faith can lead to schisms which are often long lasting and can be violent. Witness Sunni versus Shiaite violence, or catholic versus protestant. Or witness the friction between competing religions - ethnic cleansing in Bosnia, Darfur, or the violence in Nigeria between Christians and Muslims, or in Egypt.
These things are taken seriously, and people become very resistant to change. Young Earth Creationists flatly reject evolution, flatly reject the evidence that the earth has been here for millions, billions of years.
So I do not think that you can draw an equivalence between the adaptability of science, say and the adaptability of religion.
Note- I am not talking about individuals here- I am talking about the religions themselves. I know several eminent scientists who are religious, just as I know of muslims who are completely relaxed around christians and vice versa.
Criticising the institution should not be taken as a criticism of an individual.