This kind of stuff creeping into long standing series without a history of sexualisation is what really bothers me. I don't have any issue with games like Senran Kagura existing, they're open and honest on what they are and the kind of audience they're looking for but please, please, please don't start tarnishing existing franchises with something so cheap and tacky. The changing representation of Samus in smash bros is another example in giving her highly impractical footwear for bounty hunting.
Funnily enough, if it wasn't for the jet high heels, I'd actually think the changes to Smash 4 ZSS was good as I liked every other change made to Zero Suit Samus in Smash 4. The change in colors to the suit means the design is finally more visually appealing. Her character art is no longer a boobs-and-butt pose like in Brawl (funnily enough, that pose went to Captain Falcon of all people), and the design in general is a lot better than Brawl's. It's just those damn heels. Who thought that was a good idea?