In my opinion, a responsible organization must ensure that what it provides to the end consumer is what it claims to provide.
As you suggested, the existing certifications could be grouped together, but I think they are sufficient to maintain satisfactory traceability standards. Adding more would not prevent retailers from requesting a particular certification that they feel is absolutely necessary.
Any new traceability regulation will necessarily add a burden to the existing system. What is important is to ensure compliance with the regulations in relation to imported products. In many cases, the regulations are stricter for local products than for products from outside the country. The examples I gave you earlier were not necessarily about Canadian companies, but rather about companies that import.
More inspectors or on-the-ground monitoring is needed to ensure that what consumers are buying matches what companies claim to offer. Processors are already subject to many rules. Each rule represents an additional cost to the end consumer, because there is a limit to what we can absorb when the net margin is 5%.