It would be wrong to punish clubs for the misconduct of fans, says St Mirren chief executive Tony Fitzpatrick.
Alfredo Morelos was struck by an object after scoring in Rangers' 2-0 win in Paisley, with Fitzpatrick revealing a home player was also hit by something thrown from the crowd.
"In football, it's very hard to stop," Fitzpatrick told BBC Scotland.
"We had nearly 7,000 people here on Saturday and you've got one or two idiots out of that number."
Clubs are ruled by 'strict liability' when competing in European competitions but not domestically, with Scottish Professional Football League members voting overwhelmingly against such a proposal in 2013.
Under current regulations, clubs are able to avoid sanctions by arguing that they had taken "reasonably practicable" steps to avoid unacceptable behaviour from supporters.
"How can you punish a club?" asked Fitzpatrick. "It's a problem for wider society. We need to look at how young people are being brought up.
"It's starting to creep back in and it's unacceptable."
Fitzpatrick repeated his vow to identify and ban the person responsible for the missile thrown at Morelos.
"It's in police hands now," Fitzpatrick explained.
"There were a couple of coins thrown, not just at Alfredo Morelos, there was another incident where a coin was thrown at one of our players as well.
"I would ask fans to please point the offenders out to police and stewards.
"The Premiership is the best it's been in many years and instead of talking about the quality of football and all the great managers we're talking about this."
'Football bodies & police should agree security structure' - analysis
Former Scottish FA chief executive Gordon Smith on BBC Sportsound
The SFA and the SPFL should get together, maybe even with the police as well, and just determine a structure in terms of saying, 'what is the security that's required at different stadiums?'
It'll be totally different for different stadiums because of the number of supporters that are there, the size of the stadiums.
But if something could be put in place so that as long as the clubs were fulfilling that criteria then they don't get into trouble if any supporters do cause trouble.
Alloa chairman and SFA board member Mike Mulraney on BBC Sportsound
I'm not a supporter of strict liability at all. I think it's been proven not to work.
Uefa have adopted it and it's been proven to fail there. I know that there's people in Uefa recognise that.
However, that doesn't take away from the fact that football's got to step up to the plate and do everything in its power to ensure that these kind of incidents are mitigated.