Cadehell mostly is an issue of too much supplies being available to engineers along with better engineers. Typically engineers where always out of mats or bald as lex Luther. Nerfing the excessive mats would make req a more interesting balancing act, make engineers more frugal, and reduce case hell.
Take note case hugging is an old as hell meta that just got worse recently more then anything else. Cade hugging occurs as are act as force multiplier against flankers and keep marines corralled so fire support is less friendly firery