If it wasn't important, they wouldn't ask it. I don't think it's a case of "my grades and work experience are strong, if my answers are not as strong I'm good" but more of "my grades are not the strongest, I have limited experience, my application answers should be strong to make up for it".
If you ask this because you're worried about the video interview element, try your best to plan and practice a strong, concise answer that showcases your interest in law and A&O effectively. Practice on video to see if you look natural and if you have enough to say in 2 minutes.