Some things don't carry over to act 2.
Since the game uses pre-rendered assets, Arc would have to make some odd restriction so the girls only wear the clothes while not in a "cutscene" so to speak.
It happened once that Jessica was giving some speech on how dangerous the ORG is and she was giving you bed eyes while wearing nothing but an apron.
Kind of immersion breaking.
It could be added back, but it's not a priority.
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Yeah, I could see that being a bit awkward, but I was unaware that the character and background were a single render. I assumed that the character was rendered separately and superimposed over the background, which I thought would have made animations and things such as wardrobe changes easier and faster to render. It seems that my assumptions were incorrect, and I apologize.