Not better, I heard halachically you need to.
setting the record straight:
1. Yes it can splatter...not recommended to Kasher liver in your ovens broiler.
2. Although you cannot Kasher liver via salting, the Remainder says to put a bit of salt before roasting.
(Liver should be rinsed after kashering)
3. Meat that wasn't salted within 3 days must be roasted and lechatchila cannot be cooked after roasting.
4. Therefore, the rema says not to allow 3 days to pass even for roasting beiyou may forget
5. Big machlokes if liver is subject to this restriction and if you can cook liver if it was kashered more than 3 days after schechitah. Yad Efraim, aruch hashulchan and many others are meikel completely while the chasam sofer is machmir on cooking after roasting. Poskim I asked said to be meikel like the aruch hashulchan.