Panels and live programming assignments are such an awful idea. Is that what the workplace is like? Doo they want people who can work under those conditions? I've been a working professional for 18 years who gives public talks regularly and I can still see myself clamming up in that situation. Everyone knows it's hard to think and type when you are being watched.
Worse, how little does the company value developer time? If you get hired there, how many brainnumbing panels will you need to be a part of? Stinks of a lack of focus, trust and quality.