Trigger are well known for handling sexuality in a nonsexualised manner.
The show is highly sexualised, but not for the intent of arousal or fanservice, the theme of the show particularly episode 3 is that sexualisation and nudity is nothing to be ashamed of and is not inherently sexual, a scantily clad character isn't inherently there for fapbait. You have a character who is a masochist tank in bondage gear who attacks with bondage whips including a scene that involves the main character tied up having her ass being spanked with the whips, but due to the high rate of "sexualised" material during the show this doesn't strike out as a "sexualised" scene for fanservice and is played more as a joke or comedy, this is just how the fights go in this show. Later in the series a character is tied up and vulnerable and outright being molested against their consent, but due to the context of the show it doesn't read as "Ooh sexy times haha how naughty fap fap fap." it's "Oh the villian is expressing her power over that character, how insidious.".
I guess it plays into the whole theme of normalising sexuality and empowerment but what do I know.
I do know two girls who did some gender-studies BS and had entirely polarised opinions on the show, one demonizing it as crude male fantasy fap-bait and the other hailing it as anti-slut shaming womens empowerment and they were at each others throat.