The idea of the CCV venting to the intake isn't new, unique to VM engines or necessarily a problem. However, my experience with this type of system is it is inherently flawed and a poorly engineered execution of this can cause a lot of problems. A little oil in the intake isn't necessarily a problem, but it isn't good either. Think about it, a CAC can't work as efficiently if the inside is coated with oil. Mix that with egr and you get a mess. There are pics on the libby forum of intakes that have half or more of the intake diameter reduced by this gunk. Will the engine run, yes. Is this acceptable to me, no way. It is acceptable to another operator, could be. Depends of that operators goals/desires. These emissions systems come from governments that have tunnel vision, and pay no mind to the consequence or cost of their regs. I want an efficient, reliable vehicle that will last a long time. That goal is mutually exclusive with a lot of these over complicated, failure prone devices. So I think discussion about how to defeat, change, improve them are pertain to the informed operator.
I was just on the Jeep GC ecodiesel forum and apparently, mods the ccv will set a code. I don't know if it is related to too much or too little pressure, but this will have to be dealt with.