I agree completely, Streeter.
She clearly remembers her lives right up to the six months pre Krakoa including her rejection of the PF.
I see her wearing the MG outfit as indeed a pointed and deliberate statement, a visual resetting to that "less crazy" time...before the Phoenix entered her life and changed it...inclusive of the DPS.
As I said...every fan will have their interpretation (or just not get it).
Personally, when I read that interview I was..."Enh. Okies" so the whole dress issue is neither here nor there for me, so...I just went with an explanation that's simple, makes sense theoretically and goes with the story, to me. I might be completely wrong, or not, but until there's definitive, canonical proof either way...It doesn't make sense beating myself up and wrecking my brain over it.