They tried recoil-based testing for spread and accuracy before. It just led to people tap-firing their M16s for headshots anyway. The game is too arcade to get any in-depth mechanics like this is some sort of Counter-Strike, the maps too open to accommodate for 100 players so most cover rarely matters in Builds to turbobuild shit while Zero Builds struggle to gain ground against a determined shooter, and every attempt Epic makes to change things has them coward out or simply not follow up in due part because this is a game where half the community will kill you for changing movement animations.
Either suck it up and just live with what you've got, or go find something else. Things aren't gonna change unless a drastic overhaul to Epic's development policies happens entirely.