It's unfortunate, but now you'd probably have to ask someone when (or how) they obtained their designations when you interview them for open positions. Having taken and passed the CPC, QPA, and QKA, there are areas of competence that would be implied for candidates with the same credentials. Heck, even if we don't know the answers, we'll know where to look (or at least there's a question that should be asked). The ERPA material simply did not engage any thoughts on those levels. It appeared to be written at a level of a take-home test.
The key is that industry is always going to be divided into two groups: 1) those to study to learn, and by learning they are able to pass the tests to earn the designations; and 2) those to remember enough material to pass the test and earn a designation. You get enough people in group 2 that get the designation and stop learning will tarnish the credentials. I am a fan of anyone advancing their knowledge bases, but believe a free ride on the credential will make the community weaker.
A good thing is that we have these types of boards to exchange ideas. There are some heavy hitters here