The more I think about it, the more brilliant this story is.
Like, I love that she's a complete baka. But at the same time I love that this story is also a caution against trusting that such things as fate exist and that your destiny is set.
It makes for a good story in which those without belief in fate examine someone who does, and shows the flaws in their ways of thinking (Both sides). Meanwhile it shows a semi oblivious MC-chan who honestly brings people together because she winds up doing the opposite of terrible things. In the end, her endearing obliviousness is better founded and not of the same caliber of bad as Bakaraina. (Girl I love you but that pomf "What are we gonna do on the bed" scene from the WN irked me)
Meanwhile, Bertia here actually has an internal conflict that readily plays out and is founded in genuine desire not to hurt others and a selfless love for the prince. This entire time she has gone through with the presumption that it was going to end and tried to accept it. Yet... she never did actually separate herself from that sensation. She instead felt everything and embraced the moments as they came. So in the end, she is attached, genuinely loves the prince, and fears things going the way the story says it will.
Overall the story has come off as exceptionally well balanced, though the focus on the story from the princes point of view is an interesting take on a shoujo Isekai story.