It's a very good point.
The reality is that to become an inspector doesn't take only qualifications; it takes experience. To be an experienced inspector in one commodity is challenging. One of the big concerns about the act is that, while it's nice to put acts together into nice, simplified form, there's a reason we have different acts and different inspectors.
The way I can only see it happening is that the food industry itself will be ultimately responsible for ensuring food safety and the inspectors will be going in there to verify paperwork. They'll certainly take them off the front line, because they won't be qualified to actually assess anything, and that's a big concern. Essentially, we are handing food safety to the industry. We just have to hope they're capable of handling it.
To suggest somebody who inspects fish can equally be relied upon to inspect fresh produce, I think, is very optimistic.