"That could have split his head open, it could have taken his eye out, it could have killed him."
Kosmina said the table's location offered a clear safety issue for players, given its proximity to the pitch.
"The question is, why is a table there just to put an electronic sign that says 'we're going to have three minutes of extra time'? The fourth official's not even standing by it, it's stupid," he said.
"There's a real OHS issue here and if something worse had come of that, who's liable?
"The football stadium, Sydney FC, the referees because they want it there?"
Former Socceroo Mark Bosnich agreed, adding he expected the PFA (Professional Footballers' Association) to look into the matter.
"The terrible misfortune that we had with the Phillip Hughes incident, I think is a wake-up call for everybody," Bosnich said.
"Do we as a sport want to have to go through something like that?
"Kossie's exactly right, before he takes his eye (out) or hits his temple, this is player safety, this is very, very important."
Bosnich also called for the removal of potentially dangerous items close to the pitch.
"There should be no things around the pitch," he said.
"Even those advertisers next to the goals, you've got to be very careful of those because they're like ice rinks sometimes when the players are running at full pace."
