Interesting - I took this to be RN spin in overdrive- it feels like "Through Deck Cruisers" all over again.
In sum, this means that we're going to buy two QE-class CVFs, and buy the airwing for one. As other have said, this means that there is a buy of additional airframes later on, and since it would be more expensive to redesign the CVF design to be a super LPH, then it would be (in MoD PR09 world at any rate) a "SAVING" in not redesigning it. So what we have is two CVFs, one of which is called something else.
And, um, err, that's it.
I refer the honourable audience to my previous views on whether we should buy either of these things at all. (Synopsis: "No".)
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