As I understood her, mechanic told her he had to remove basically all the door guts to remove the twisted/torn rubber weatherstrip/gasket piece in the metal channel area. But on mine, I know I pulled out the top and rear portion, then pulled UP on the remaining front strip and it came right out of that front metal channel, all the way out.

Only difference, mine was not ripped or bunched up, so that might make a little difference in how easy it is to pull it up and out.
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*** oh, one tip I forgot to mention to her
when messing with the metal channel trying to widen it, be real careful not to let pliers slip off and hit the inside skin of metal door shell..you don't want a wrench imprint on your door...