Despite section 872, on or after the commencement day, if the Children's Court is satisfied in accordance with section 384(5) of the Children, Youth and Families Act 2005 , as in force immediately before the commencement day, that a person subject to a CYFA probation order has failed to observe a condition, or amended condition, of the order (irrespective of when the failure occurred) the Court must not revoke the order and impose a sentence under this Act that is more severe unless—
(a) during the term of the CYFA probation order, the person commits an offence punishable on first conviction with imprisonment for a term of 5 years or more; or
(b) the conditions of the CYFA probation order or the support or assistance offered to the person during the remaining term of the order cannot be varied in a way that would make the order suitable for the person.