I was thinking the same when I was looking at the Canadian Stampede 10 man. In 1997, it was considered one of the top matches of the year and not even 10 years later, 4 of the 10 have passed (Owen, Bulldog, Pillman, Hawk).
I was also thinking of this when the showed the 10-bell salute for Pillman. They pan by so many guys who're gone now: Hawk, Owen, Bulldog, Rude. It's really just surreal to think about it.