"That means the CVF will have a secondary LPH role. Somehow I can't ever see them being used in that way."
Really? Sometimes, believe it or not, the power projection business is just as well done by RW as FW. A CVF sitting 30 miles offshore with large contingent of Bootnecks, CH47s, AH and the CHF is capable of having a large effect on an enemy's planning assumptions - Poise, Fix, Manoeuvre etc. You could always have a flight of Daves to act as escort if deemed necessary.
The RN is at great pains to say that you can Operate 20+ CH47s off the things - they know the way that expeditionary is going and have force structured to suit. We've used the CVS as in-lieu LPHs, CVF will likely be no different. Besides, at the current rate we'll only have RW platforms and crews to embark on them anyway.....