They are HORRIBLE speakers
Oh come on! They did a really good job in that interview.
No way they're as bad as I am
In what way were they bad? Because they act in a calm manner instead of like revivalist preachers? All their answers were accurate and they appeared moderate and pleasant. You are setting pretty high standards by criticizing them.
They just aren't well spoken. They spoke unconfidently through their teeth and looking down.