I like the WDFW play on words. "Flexibility"? That means they don't have to follow the rules so strictly and can bend them to suit their purpose which is to allow a commercial net fishery on the Columbia in March when large numbers of wild steelhead are present. And "inadvertently" should mean accidentally but since they know they will catch too many of these listed fish it is hardly inadvertent....predictable would be a better word.......Here is how an honest person would write that statement:

"Fish managers are seeking the legal authority to ignore protection for wild , listed, steelhead that we know will be caught by the commercial netters in unacceptable numbers."