The figure clearly shows that humans and chimps are closer and diverged more recently than either did from gorilla. This is both what the figure shows and what the authors conclude.
You need one that goes like this.....
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Showing Gorillas and Chimps as more recently diverged from the other than either is from a human. So far you have yet to find a source for such a graph, because the data does not support it.
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Are you blind? Take a look at the dashed Tree in A and Tree C. Just admit it, your supposedly water-tight case is leaking like a sieve (just like the rest of the HMS Beagle):