DDP draft specification

Hi,

The below 2 sentences are from draft-ietf-rddp-ddp-05.txt

1. DDP provides enough information in each DDP Segment to allow the ULP Payload in each inbound DDP Segment payloads to be directly Placed into the correct ULP Buffer, even when the DDP Segments arrive out-of-order. 
2. This specification requires reliable, in order Delivery LLPs.

First sentence says that DDP segments which are MPA FPDUs in TCP case can arrive out-of-order and second sentence says that LLP (MPA layer) needs to provide ordered delivery. Isn't it contradictory?

Regards,

Sanjay