The way a funny car cage goes forward of the driver would make it pretty difficult to get out of the window opening i would think. But then again these seats now-a-days make it pretty difficult. No wonder these drivers are all 5'9" 165lb.
That hit was definitely one of the worst ive ever seen. I wouldnt be surprised if teams beef up the cage where the car was hit. All the bars are down on the side of the car but the roofline is pretty bare where he got hit.