If I understand the premise of the post, I think your theory is accurate in my case. My wife and I just spent about 2 hours in discussion tonight about my cross dressing and changes over the last few months. She tolerates on my behalf, but doesn’t truly understand and will never get pass seeing me as simply a man in a dress (her man in fact). I can not pass and almost assuredly never will, certainly not in her mind. I do believe if I could pass she might be a little less cold to the whole thing.
She is not a girly girl and is probably even less so now than ever. She never sees herself as pretty or beautiful and only sees her own flaws in the mirror. I told her I wish she could see herself the way I do, then followed up with and sometimes I wish you could see me the way I do! She wants no part of seeing me dressed and though my own brain tries to see myself as good as possible (aka after a FaceAp alteration) she just can’t.
Anyway, back to your question. Yes, I think she would be more receptive if I could pull it all off better. Maybe when I ever get good at makeup I can find out. Probably not.