I never said it doesn't matter to the show, or that I don't like it. I said it doesn't matter to Loki - the character - and his narrative arc. That his story of character growth and the story of the mystery of the TVA aren't really integrated together, and that I get how, if you're here for the Loki stuff, spending so much time on Kang would be a bummer.
What?
It matters to him because at the point in his arc where he's still obsessed with obtaining power, he stumbles upon the entity with more of it than he imagined possible, and he realizes how small and lonely he is. And then by the time he's turning against Sylvie, he's desperate not to jeopardize it, in case the fate of the universe depends on its existence.