It takes a great deal of training to carry out a mission perfectly under stressful and time sensitive situations. Military, LE, Fire, etc., train constantly so it is routine for them. They go on automatic in an emergency or mission. Their gear and weapons are all designed for the job and used in the training process. But we can see that young amateur criminals have none of that and mistakes are going to be made.It seems pretty sloppy for a criminal to wear a mask, full covered suit, gloves, and then to leave a glove behind. It’s also, certainly possible, though.
Time will tell.
Especially when events do not go as planned. The military and LE are trained for mishaps and the unexpected. But young amateurs may panic and do stupid things.