Instead of feeling like the 'shoot first, ask questions later' type like Samus has always felt, she feels like the type who would flirt with her opponents before beating them.
I find her to be unappealing due to her oversexualization - she basically ditches all the 'cool' and 'badass' aspects of Samus to become a stereotypical space dominatrix who shoves her ass in the camera and shows off her curves every chance she gets.
Why does everyone in the Smash fandom apart from SJW's love Zero Suit Samus? She's the most popular female in the game (maybe behind Power Suit Samus) and is the most hyped future amiibo.