The problem is that if there is zero push-back, then game companies will just expand to meet the limits. Modern Warfare hit 256GB[0], literally larger than most SSDs at the time. The reason it was huge was supposedly because it shipped uncompressed audio to support a fraction of the user-base who couldn't support decompression fast enough.

0. https://screenrant.com/cod-modern-warfare-file-size-too-big-...