No. Not because the idea is bad. It is really good
but because it will not work even if implemented. People would scream flash and thunder left and right, but the amount of TKs would not go down.
If we could get icons hovering in the 3D world, over the friendly head when he screamed "Flash", then perhaps
I actually wrote a design for our Clicker weapon, that would work like this. It would produce an icon on the teammate who used it, but it was turned down by our coders.
Kind of like this icon over your team mates head