Any proposed amendment, other than one originated by the Borough Planning Commission, shall be referred by the Borough Council, at least 35 days prior to the hearing on the amendment, to the Borough Planning Commission. That Commission shall consider whether or not such proposed amendment would be, in its view, consistent with and desirable in furtherance of the Comprehensive Plan upon which this chapter is based, as the same may be modified from time to time. The Commission shall transmit its conclusion thereon, together with its reasons therefor, to the Borough Council. The Borough Council shall take such conclusion and reasons into consideration in reaching its decision, but shall not be bound thereby.