Go watch it again. Martin celebrated for maybe 1/2 a second before realizing the guy was out cold, and he immediately calmed down and backed away like he was scared of the guy.
Martin had just got his bell rung as well. You have to forgive him making an instant's celebration after a huge hit.
This is football. You should not be disturbed by that play.
"This is football" retort is getting old. Also eric martin has no soul.