"It is confusing isn't it? I think they're using the larger 35C max payload numbers which is higher than the B's"
Except that the Royal Navy ruled out the 35C years ago because their initial price estimates to put a somewhat more conventional catapult and landing system on the Prince of Wales ballooned completely out of control, so not sure why they'd use the B's payload numbers in an article....
OK, it gets even more confusing...
Navaltechnology.com says that the B can carry a 6,803 kg payload, and the C 8,160 kg... lighter than the 22,000 lb payload quoted in the article or that infographic.