see if I can help a little and I'll probably explain this wrong but, as you probably have already read, the C in ESC stands for control, you can look at electricity the same as the flow of water, the esc acts as a control valve, it just controls the flow of electricity, the motor doesn't pull electricity, it uses whats made available, as long as the esc allows enough electricity to flow to meet what the motor needs your ok, it's when the motor needs more than it can handle, the esc will limit or shut off the flow so no damage can occur