If anyone gives any thought to this, it won’t happen. If the government removes/limits the ability to appeal to SENDIST, it won’t solve the issue. It will just move it. At the moment, JR isn’t an option for the vast majority of cases (a very small minority of cases it sometimes can be an option) where the parent can appeal because appealing to SENDIST is a suitable alternative remedy and JR is supposed to be a remedy of last resort. If you remove that remedy, more will be able to consider JR because there won't be an alternative remedy.
Limiting the ability to appeal to SENDIST has been rumoured for ages.