That's crap. The first three were all very even, the only one you could argue being outplayed is the last one.
Have you looked at the averages of the players?
There was nothing about these conditions that took us out of our comfort zone in the way seaming decks and swinging dukes would normally.
Our bowlers were neutralised but the English faced the same problems, neutralising Anderson completely, for example.
They implemented tactics and overall strategies to overcome the talent gulf between the sides and it worked. It exposed a complacent psychology bailed out by an 8th wicket stand, a 1/10,000 stumping/run out and then rain as we were falling to the mat for a 10 count.
At the end of the day we retain the Ashes and there is no disputing it. Our lazy, complacent batting and horrible bowling plans resulted in close tests when the English are barely fit as reserves for our test side.