I am not an experienced user, but i agree with you. Sometimes the system is merciless and continues to give bad luck to some teams.
Injuries, except for field conditions, depends also on the opponent tackle instructions (hard tackle injures more players). And as I am seeing in your training picture, try to train your players with medium intensity. It increases the injury chance when you use 3 green lines when train them. Good luck on the next levels buddy. This is a game that you can do good even if you log in twice or three times a day. I know that you wanna be the best though Peace