Re: cosmic awareness EC
It's not against the rules to create an EC with those powers, it just requires the GM's permission, which is another way of saying, "If it's a legitimate concept then yes, if you are doing it to save points, then no." and I would agree that what you describe is a legitimate concept though others may not, so go ahead and do it.
As for your second issue. Making danger sense targeting would allow you to use it detect targets in combat, but all your senses are flashed as the same group, and doubly so if they were in an EC. So, the chances of having your Q Sense flashed and not your Danger sense are very slim. I would save your points on that one.