I agree with this point here... It seems like the new certification process won't be that much more scalable than the current system.
What I think would be a scalable system is a completely automated test (duh). I know IA has thought about this before, but I think solving this problem (meaning solving how to create a test that will accurately gauge your knowledge of Ignition without having to manually grade each test) seems like a better problem to tackle, at least from my perspective.
CompTIA, Cisco, Microsoft all have automated testing and the systems they're certifying for are arguably more complex than Ignition, depending on the test. In general, I think it's possible to write or ask a question about Ignition that will very quickly show whether someone knows the system or not.