She’s already been attacked by the left for her previous positions on abortion and marriage. She’s not considered an authentic leftist. She’s also apologized for her previous positions instead of standing up for herself and telling the uber leftists where to go. She is without a doubt the best on the military and foreign affairs. Look for her to be attacked by the media right away.
I think your assessment is correct. Her positions and perspective on these things are what would make her a better candidate to middle America (or what's left of it). But those positions make her unpalatable to the powerful, coastal media, who seem to truly detest real Americans, and want a stealth candidate or dupe to effect this hatred of us.