Hunter J was not dangerous because she was a good trainer; she was dangerous because she was a brutal and lethal trainer. She was calculating and was very willing to use lethal force, something champions only bluff about.
"Everyone creates the thing they dread. Men of peace create engines of war. Invaders create Avengers. People create... smaller people? Er... children! I lost the word there. Children. Designed to supplant them. To help them end."
But this is the traditional royal Canterlot voice! It is tradition to speak, using the Royal "we", and to use THIS MUCH VOLUME WHEN ADDRESSING OUR SUBJECTS!!