It looked bad to me. Full speed Helmet to stomach/chest area. And it looked really bad the way he just dropped. But even if it wasn't that bad with his history of concussions it wouldn't take much.
Same on the irony...
It was all of the above... when watching full speed... and then the drop. Yikes... I agree, I think his career is over, or it should be.
To the irony comments... yup!