Actually MaxBT, I've been robbed by people of all levels (I was robbed of 9 blood diamonds by a level 20 when I was level 12), it's purely opportunistic. This game is set in a time period of knights, kings, dukes etc, they had a strict code of conduct and honour that did not involve robbery. I thin...
Summons were nerfed because you could kill the enemy back row bypassing the front line, firestorm is practically the same, it Should get nerfed by the same principle as summons.
Or return the same radio area as before with the exception that you can summon as far as your troops had reached at that moment but not in front of them