Ok, this I understand, but this actually happens if you move too fast
Yeah, it's urgent. But they are always telling you that you will probably barely be able to complete the mission at all, even if prepared. And this whole thing is going on for two years. I didn't get the feeling that the Collectors are about to wipe out all of humanity within a week or so. If they wanted to make it real then there couldn't be any side missions at all. And guess how much crisicism they would have gotten for that. So in this case we actually have a timed event that will force you to make bad choices - but you can avoid that if you take care. That's actually more I remember from other games (although I admit that I haven't played a lot of RPGs).