In every BF title since jumping was changed in Battlefield 3, the introduction of the vaulting system has consistently had issues. Let's face it, BFV has more bugs to do with vaulting, lunging, grabbing, etc. than any other previous game. It has been made apparent that there was a significant amount of time and effort put into vaulting in BFV, and yet it has arguably even more issues today than it did in BF3 or any other title in the franchise.
The bottom line is, vaulting takes away from fluid gameplay and introduces even more issues and unintended bugs that have continued to plague the Battlefield franchise for nearly a decade now. Nothing about vaulting improves the gameplay experience, and regular jumping worked without issue in the other BF games pre-BF3. In fact, Bad Company 2 had many instances where jumping would actually require some skill, suck as quickly maneuvering through a broken window to escape your enemy in a building.
It is tiresome to get caught on every little artifact when trying to walk, or pressing the jump/lunge button countless times to get past a small hill or rock. The feature in question has never been seamless there is no reason to believe it will ever become near flawless. In a game like BF with large maps and dynamic structures, jumping becomes a staple tool in a player's arsenal and its use is unavoidable. BF would be much better off returning to a regular jumping system, an easy fix for an endless problem spanning 5 titles now.