I can see an argument both ways. While it is true that

, not all DBA and or SQL positions are specifically geared towards trawling through stored procedures and code. There are positions that require the domain knowledge of the sector in question due to data mining. There are tasks such as prediction models and applications that require one to be able to identify which data should be weighted higher or lower.

In many scenarios it can certainly boil down to what the exact job role will be. If they need one to maintain a database architecture, the inherent objects, and optimize performance then yes the argument that data is data certainly makes sense. If job role is to begin working on neural networks and prediction modeling, from a database developer or dba perspective, then domain knowledge of the industry is a valid requirement.