Engineers are notoriously great with numbers and focus. That doesn’t always translate to being great with operations. Operations analysis is both quantitative and intuitive, and engineers without operations training can — and do! — waste millions of dollars when tasked to oversee operations.
For maximum benefit, you need to evaluate the individual process in the context of the overall system of processes it connects to. So some operations knowledge can help engineers place their analysis of an individual process into an overall context of the operations system.