The govt cant afford to ban everything… Tavors are still around.
They can afford to ban anything, as there will not be any compensation.
But there is one detail, that is complicating any further disarmament plans for them right now
That detail is the fact, that they would need to be getting into the mostly non-restricted territory, as by now they had pretty much devastated the entire restricted class.
They realize, that if they do it right now, it might be more than they can handle at the moment.
They also realize, that right now the level of compliance would be near zero, either for the Tavor or any non-restricted in general.
Only a complete idiot would hand them a $3000 rifle (or any firearm for that matter), which they don't know about.
And this is where the new "non-registry" gun registry comes in.
They need some time until enough firearms get accumulated into the system, as the database from which they can draw is growing every day.
Once they shift to the next phase and start requiring the model and serial number for the private transfers, all they have to do is wait and then attack at the time of their chosing.
This will most likely be facilitated through another high profile shooting (even if it happens south of the border).
By then they would be confident enough to enact the ban, knowing that their loot will be significantly higher with the new registry being used at the tool of intimidation.