We already have all the data once the demo is analyzed. It's just all about trying to figure out ways to display it and give users control over them in ways that are simple but powerful.
In your example "impact of some particular single flash in B rush" the question is how can we define impact from the data inside from the stripped down version of your demo. How do we define impact through data? Is it just blind time or do kills need to follow? Should those kills be weighted more if it's on the bomb site where the bomb is or if it's close to the round end? How do we factor in what weapons each team had?
As you can see there are a lot of things to consider, but these kinds of questions are what we are answering and will have in the near future. We would like to create as many presets similar to what you mentioned but also to give you all of your raw data with a UI that allows you to build out tables, graphs, and trends easily.
Keep providing me metrics/trends/stats you'd like to have and we will focus on them.