Dr. Anya Sharma, the chief architect at a national digital library consortium, is tasked with evaluating the Z39.50 compliance of a newly developed library system. The system\'s developers claim full compliance, emphasizing its robust MARC record handling and efficient search capabilities. However, during interoperability testing with other consortium members\' systems, Dr. Sharma discovers that the new system exclusively uses MARC for data exchange and lacks the ability to negotiate or support other formats like XML. Given the principles of Z39.50 and its emphasis on interoperability, what is the most accurate assessment of the system\'s Z39.50 compliance in this scenario, and how does this limitation affect its integration within the consortium\'s diverse environment, considering the need to accommodate evolving data standards and varied information types beyond traditional bibliographic records?