That is one method of doing a low slope section. Myself I would have used either a torchdown or 2ply selfstick system in a more complimentary color. Please see if the matrial goes under the shingles, hard to tell from the pics. Blame the architect for designing a roof with a dead valley visible from the street for that.
They could have pulled the rubber back and re glued it where they put a wrinkle in it. I know it happens, it's one thing if it's on a parapet wall 15 storys up knowone sees. It's another when you can see it from the money side of the house.
Probably could have started the shingles down a few more courses to have less of the epdm exposure.
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