Thanks for making me chuckle at your comment :)
I suppose it takes some level of imagination as to the character, depending on how the story and narrative of the game eventually pans out. I hear what you're saying regarding character creation or one with a strong background to begin with, but for me, the lead character could be "Percy the Pig Farmer" as far as I'm concerned; so long as the story and narrative surrounding that character is immersive enough.
I agree the story and world-building is more important than anything else but I think The Witcher 3 proved that a well-written, interesting main character can make the story itself more interesting, notably with NPCs he has a pre-existing relationship with.
But even if you're set on having a generic, bland PC to let the player approach the setting as a blank slate, why wouldn't you let said PC be customized? At least it would let players be more invested in their character.
It seems to me the non-customizable, generic PC like in the Gothic games or, apparently, this game is the worst of both worlds.
I have to admit, I do quite like having the option of greater character customisation available, such as changing the facial appearance of the avatar I'm controlling in a game and trying to create a "mini-me" look for my character, because after all, who hasn't done that in games like Dragon Age or Mass Effect. ;)
However, it's not something I particularly consider as essential towards my enjoyment of a game, if all the other aspects of gameplay pique my interest enough and are done well. If I can change their attire and weapons to a certain degree, that's enough for me.
If we're talking about modern RPG's with deeper narratives and storytelling elements focused on a core protagonist, such as Geralt the Witcher series, I actually prefer stepping into the shoes of a predefined character with their own background, narrative, look, voice, and story. Just the same as I enjoy watching a film or reading a book with a main protagonist, except in a game we get to control that protagonist.
Indeed, in some respects I generally find the character customisation options to be far too limited in most games where they've been available, but for different reasons. In games where the player character isn't voiced, no pun intended, but it always strikes me as quite dumb that all the other characters are voiced, whilst ours just nods their head and doesn't actually voice anything beyond on-screen text. On the other hand, I've played games in which the player character is voiced, or has a choice of three or four voice styles, but they all sound awful.
Controlling a predefined "Henry" in Kingdom Come is fine by me, and at least his name starts with the same letter as mine, eh! Doubtless I'll enjoy stepping into his shoes in this game, and controlling whatever destiny awaits.