I think, he feels ready to make an impact on the field as quickly as possible, and it's hard not to like that. He knows what people have been saying about his ability to make an impact as a pass rusher, and about the concerns people have/had about his knees. It looks like he is studying hard and doing work in the weight room...hard not to be excited about him.
Played some fullback, plays rugby, can fit any scheme, and it's easy to see what PC&JS saw in the fella.
Top 5-10 DT in college football, 2x National Champion (played on some big stages), projected to go at a high round and the 'hawks get a great steal (ala Sherm, Russ, etc) in round five.
Did Seattle just break the game??