For a very simple element, consider that if you used to have texture resolutions of 256² = 65536 pixels, you now might easily have 4096² = ~16.7mil pixels, a 25480% increase.
So our 4k texture packs really guzzle up harddrive space. And that’s ignoring how many many many more things there are to texture in the first place, how each element has multiple textures overlaid for shading, and all the other parts also needing more space like higher-def audio.
Honestly Rouge the Bat deserves to be there in full, not just lite.