Hello. Just my opinion - I don't think the teleporter scrolls and death system in Divinity are something the developers 'missed,' but that they're intentional and actually better choices than what TQ has.
TQ is beautiful, but linear. You march endlessly onward, slaying and slaying. You can't be bothered with searching for scrolls to activate teleporters. DD is all about exploration. Finding the teleporter scrolls is a quest, and it's more rewarding to work for the benefit of using those magical devices.
In TQ you don't worry about how you should approach a situation. You just stride in and kill. You die, you do a bit of walking to catch up, that's all. Your character's life basically has no value, when there's no consequence for dying.
DD makes you take your character's life seriously, because when you die, you die. It makes you cautious about plunging into a group of twenty orcs when there's no coming back.
I don't think it's much of a hassle to save. There's a quick-save function.
Personally, I think a happy compromise here is an auto-save function. That way, if you die, you still lose all your progress since the last save, so you take things seriously, but you're not so harshly punished for getting so caught up in the game that you forget to save.
Not ripping on TQ - I think it's great. But I think you'll find DD is much better.