The Scottish Football Association has vehemently criticised a “hysterical media narrative” and taken a swipe at the Hearts manager, Derek McInnes, while revealing one of its match officials and his family spent Thursday night under police protection after controversial incidents which have dominated the conclusion to the Premiership season.

McInnes called the stoppage-time award of a penalty to Celtic in Wednesday’s win at Motherwell “disgusting”, with that, plus the denial of a spot-kick for Hearts during their fixture at the same stadium days earlier, dominating discussion. Hearts visit Celtic on Saturday needing a draw to become the first non-Old Firm title winners in 41 years.

In a lengthy statement the Scottish FA said John Beaton, who refereed the match between Motherwell and Celtic, was subject to police surveillance after his personal details were leaked online. The association made plain its anger over the situation.

“Such vigilantism, motivated by decisions perceived to be right or wrong on a field of play, is a scourge on our national game and we are grateful to Police Scotland for their swift intervention,” the statement said.

“We are also clear, sadly, that this is the inevitable consequence of the heightening criticism, intolerance and scapegoating demonstrated this season by media pundits, supporters, official supporters’ groups, clubs, players, managers and former match officials.

“We do not make that point lightly as the national association. Yet it is an inconvenient truth. Those who have sought to apportion blame and conspiracy towards match officials to deflect from defeats or perceived injustices throughout the season have contributed to an environment that puts the safety of our staff and match officials in jeopardy.

“This is the consequence of a hysterical media narrative, fuelled by irresponsible knee-jerk post-match media interviews, commentary and official social media posts. The cumulative effect impacts on our ability to provide enough referees to service our game at all levels. When it compromises the safety and wellbeing of our most senior match officials, enough is enough.”

The Scottish FA said that the situation with Beaton was “not an isolated incident”. It said: “We will not allow this to become the norm. We will not allow a situation where match officials require special provision to protect their children at school to be considered an occupational hazard. We will not allow a situation where staying at home with the front door locked and avoiding the hazards of public interaction becomes a coping strategy.

“As we approach what should be an exciting finale to the season, we ask those who have personalised and hyperbolised their opinions, those who have sought the easy way out by attributing defeats to perceived refereeing errors, and those who have approved incendiary statements and posts to reflect on their contribution to creating an environment of intimidation, fear and alarm.”

Martin O’Neill, Celtic’s manager, shrugged off noise relating to Wednesday’s penalty. He believes the reaction was typical in a nation where neutral support for the title is behind Hearts. “Am I surprised? No, I’m not surprised, because everybody wants Hearts to win,” said O’Neill. “It’s really as simple as that. Everybody outside Celtic and the Celtic diaspora wants Hearts to win.”