Thanks for you feedback. Sorry for so many circumstances for a couple of battles which hurt you so much. The issue with bots is actual. We do work on it.
At the moment there are no plans to withdraw friendlyfire in co-op battles. It'll change the game a lot and lead to negative consequences for other types of battle.
Sorry for your detonation. It's a part of game and there no plans to exclude it too. But you have possibility to use signal flags and modules to reduce chances to detonate.