Physical strength has a role in fighting but I would think technique and balance would be more important. I think Eichel's balance on his skates would help in a hockey fight but benching 225 may not be as big a factor against an experienced fighter who knows how to protect himself and counter attack.
I think it would matter if it was a guy like Lucic as opposed to a guy like Laine. When Drury got hit Stafford didn't really fight. He tried but the more experienced fighter took him down. That situation is different if It was Peters instead of Stafford. Bottom line is if Eichel fights a goon out of rage it won't end well. Regardless of how much he benches off the ice or what lead to the fight.