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Agree - see my other post on extending the boost higher into the revs.  I'd wondered why the big exhaust, but it may be all about eliminating back pressure at high RPM to keep the boost going.


From Ford's perspective, that would be nice, since they get a big HP number without increasing the boost pressure all that much.  Better reliability but keeping the bragging rights. 


And it should still have plenty of drivable torque with the 470 to 500 bump, which I'm sure would be across a wide RPM band.  If the turbos are too fat though, lag could be a problem.


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