You should not have to spend talent points as soon as you get them. I do not want to go to the blacksmith and waste 100 gold to by back talents. 5/5 though.
I think there should be a unit to alert you by pausing the game when a rare unit drops, and were you can set it to only alert you for certain rares instead of constantly doing it. I know I have missed a tesla when I barely saw it before it disappeared, and it is not a crime to leave the computer running, or enjoy some tv or what have you. Second, could there be a button at the bottom right corner which you can click to view all units who have lost 60% of health of whatever that is interchangeable. It shouldn't have the number of health it currently has or below because what about the units who's max health is below that.
I'm constantly fixing them - with a help of the community.