Hard agree. Except the retest should be more stringent, akin to PassPlus, such that if you continue offending the penalties are considerably harsher.
Also there shouldn’t be the possibility of claiming hardship. You should have thought about that before choosing to drive poorly
You should lose your licence after 6 points, rather than the current 12. You should also have to take your test again to get it back after the ban ends. We've got too many shit drivers on the roads, this might go some way to getting rid of them.