FOI Bill

I am still trying to come to terms why the national assembly has been foot-dragging in the passage of the Freedom of Information Bill.
Former president Olusegun Obasanjo had refused to sign the Bil into law when it was passed by the former national assembly last year before he left office.
I understand the Bill has been adjusted to protect certain interests but then why the prolonged debate?
Why do other Bills get accelerated debates and passage and the snail speed in the passage of the FOI Bill?