No Indy. It's not my intention to get everything in the game changed and adding new quests now would be too much of a good thing. Even I have to say that this would be against the content of this chapter - the hurry and time running out. Also it wouldn't change the fact that a lot of the quests that are already there can be missed easily.
Actually, I basically like the idea of linked quests. Like having Nena help you with another quest before you escort her to her church. This is something I could have thought of myself (especially since I missed a similar thing in one of the LP games, lol). But important 'key quests' like the Flower of the Depth should (imo!) not only be available at one point of the game. I was lucky not to miss it, but others have and that means missing 5 quests, which I think is a bit much.
As I said earlier, I think it is a good game. But the way the sidequests are set up is something I'm not happy with.
I can only speak for myself. What would really help me is getting the chance to complete things after finishing the main quest. It's up to you whether or not you can and want to do that and to which extent.