This really nails it. Looking at the big picture, this story revelation really changes nothing about Carol’s character besides a completely arbitrary distinction about how she got her powers (either way she received her abilities by chance from a source completely outside her control; this source has now been changed from a space bomb to her parents’ genetics).
What’s troubling is that in her old origins, she got her powers through heroism and selflessness (she’d not have been exposed to the bomb if she hadn’t been a normal human who put herself at risk trying to help Mar-Vell) after years of work and personal achievement, but The Life of Captain Marvel heavily implies that there’s something wrong with this, and simply being born with advantages is objectively better. The dramatic “my powers” panel comes across as sheer egotism, as if all her good deeds and achievements to date are only now validated because they can be attributed completely to Carol (I guess Spider-Man should be ashamed of himself of being ‘accidentally’ ‘gifted’ powers from a spider?).
As others have said, the whole point of this mini was to make the comic character more in line with the MCU, and all this genetic superiority stuff is just unfortunate by-product of that. Quite humorously, this actually hugely contradicts the mantra maintained by the MCU in general, which is that inborn greatness/power is completely unimportant when compared to one’s actions and their strength of character (eg Tony Stark in general, Cap in general, Thor proving himself worthy while powerless, Starlord’s whole arc in Guardians 2).