Elliott left the Warriors after his side were badly beaten by Cronulla on Saturday, with the club releasing a statement on Monday morning that suggested the coach had resigned.
The circumstances of his departure were immediately questioned and Glenn today confirmed Elliott was indeed sacked from his post, without ratification from the co-owner.
"I was sorry to hear of Matt's 'resignation'," Glenn said in a strongly-worded statement. "I was sorrier still when I learned that he hadn't, in fact, walked away from the Warriors at all - he didn't jump, he was pushed.
"But what I am most sorry about is the dishonourable treatment of an honourable man."
Glenn, along with fellow owner Eric Watson, has stated his desire to turn to Warriors into Australasia' pre-eminent sporting franchise, but he acknowledged results this season have been disappointed
"Saturday night in Sydney was worse than disappointing," he said.
"Since I am known as someone who deplores mediocrity, I guess I would have to concede that hard questions needed to be put in the wake of the Sydney debacle - not just to the coach but to the players and the Warriors' management team.
"However, a decision to axe a coach needs to be scrupulously considered and properly ratified. Instead, what we have here is a seeming knee-jerk decision conveyed to Matt immediately after the game, without ratification by the full board of the Warriors - or by this co-owner.
"Adding insult to injury, there appears to have been an effort to evade accountability for the decision by dressing it up as a voluntary resignation rather than calling it by its proper name. This was clearly designed to convey the impression that Matt Elliott chose not to stay."
Glenn went on to wish Elliott well in the future and express his gratitude to the coach for giving his best in trying circumstances.
"The Matt Elliott I know is not a quitter. And in view of the service he has given to the Warriors and the strength of his character, to suggest that he would walk of his own volition is disreputable."
