You're comparing transparency of used tools versus a cheating in personal relationship. Good that I'm not being accused of grand theft auto here, since it's just as close.
LLM usage is accepted, both legally and morally. 10% of world's population is using it daily, how many "written with help of ChatGPT" disclosures you're seeing. There's absolutely no obligation to disclose and I could just as well omit that fact and that wouldn't be wrong doing.
I disclosed it to lower the trust and invite more scrutiny, what I got a blanket statement that turned 300+ hours of work into garbage.
That's more like: "my fiance after 5 years dumped me because I told her I like mayonesse with my french fries". I have no more self-reflection than that.