Prompt at the End of a Match

So, I was just thinking about this, and haven't sought out much in the forums as of yet seeing as there may be quite a bit to filter through, but, Has anyone pitched the idea of a potential feedback section at the end of a match on the PBE? Like you practice some of the new things implemented into the patch in game, then as you hit the end game lobby a prompt appears and you have a series of questions you could answer, or I've seen some use of a rating system(I don't really like rating systems in Beta testing because I like to put in word of my own). I'm not sure if this is a great aspect, or if it will be more troublesome for Riot, BUT for me having a prompt end game that I can just spout off what is fresh from my mind about what it is I tested would be a lot easier than coming to the forums after every game. It wouldn't necessarily have to be mandatory of you to fill it out, if you are just working with some new balance changes, but you could fill it out if you wished, maybe have a drop down much like the reporting system for which category of testing you are going with. (Character interaction, Balance, New Skin, Particle Interaction, etc. ) I just thought I would drop this idea in and see what the community thought, I certainly can't be the only person to have voiced this.