>>3975868(I'll assume you're referring to Kirakishou from Zurückspulen which is Season 3.)
S.3 overall was extremely rushed and had practically no substantial character development for any of the Rozens. It was only possible to sympathize with the other 6 Maidens in S. 3 because S.1 & S. 2 put so much emphasis in small and meaningful character details / development. Really, If I hadn't watched S1 & S2 (+ all the other stuff) prior to S3, I'd have no idea what the hell is going on plot-wise, either.
Plus, Kira was way too sexualized. I mean, this scene was great; but it doesn't belong in Rozen Maiden.