I only jump throw to avoid hitting teammates in the back. If they remove it, I'll just try to toss over them, but I'll probably end up TWing more than I already do. And anyone on NA Siege can tell you my throwing axes tend to hit teammates about as often as enemies (those things are so damn inaccurate, and I'm reckless with them to boot).
I'm not a fan of people that abuse jumpthrow to headshot through shields though, so I'll be glad to see that gone.