To start with, let us be honest: Mr Flynn works for Lockheed Martin. And when he talks to the media in an official capacity, he answers at that moment not to the flight-test organization but to the company's marketing, advertising and communications side.
Everyone selling anything says what they can get away with, whether it is simply telling porkies or selective data. (As in the commercial airplane world, where there were 105 ways of quietly lopping a couple of seat rows and four revenue freight containers out of your competitor's jet in a supposedly comparable layout.)
But the aircraft does not lie.
Compared with the JSF:
The Phoon is two tons lighter empty, and will be lighter by a larger margin at start-of-combat with the same fuel fraction (which determines how long you can fight and still get home) and weapon load.
The Phoon has equal static mil thrust and 93 per cent of the max thrust. It has a lower-bypass engine cycle which is increasingly advantageous as speed increases. (The F135 is optimized for SLST - score another hit on A/C capability for the B version.)
The Phoon's body is several feet longer and has much less volume (by two weapon bays and 8,000 lb of fuel) so its fineness ratio is greater. It also has a lower cross-sectional area that peaks much further aft.
The Phoon wing is 20 per cent larger in gross area, probably 50 per cent larger in net area, has a lower T/C-ratio and greater sweep.
Laws of physics > statements of LockMart employee.
Basic Tech Intelligence >
PR and advertising.
This is not to say that the F-35 was incompetently designed. The requirements for the F-35 and Typhoon were vastly different - as different as the Buccaneer and the F-4K/M, although both had two seats, two Speys and a radar, as different as a Tornado and an F-18.
LockMart and the JSF peanut gallery are free to argue that their approach delivers a better military capability, but to try to make the case that JSF is better at what a Typhoon is intended to do... Sorry.
Also, this is all a bit amusing coming from the crew who also tell us that "maneuvering is irrelevant". Make your bloody minds up, will you?