Elgar took a nasty blow on his helmet in the ninth over of South Africa's second innings which forced early stumps on day three but the match resumed next day after deliberations between the captains and match officials.
"I do think (it should have been called off earlier). On day three, the wicket didn't play great. Batters got hit a hell of a lot of times. If there was a period to call it off, it was sooner," Elgar said.
"We are not just going to take blows and accept putting our bodies on the line. The situation could have been addressed sooner," he said.
It was a Jasprit Bumrah delivery that hit Elgar under the grill after being pitched back of a length.
Elgar said he had never experienced such uneven bounce at the Wanderers before and was happy to walk off the field after the umpire finally decided to call off play.
"I've faced many fast bowlers before and I know the Wanderers wicket has that steep bounce, but I have never experienced it like that. Which obviously put a bit of doubt in the umpires' minds.
"I can't think I would have played it any better because if it was that short on a wicket with bounce, it would have gone way over my head and at least given me some time to get out of the way. It's a freak moment and thankfully the umpires had sanity about the incident."
Elgar said it required a different kind of batsman to succeed in those circumstances.
"A lot of times in Test cricket you fight with yourself, especially on a wicket that is allowing seamers to be on top of you," he said.
"You've got to find another way to put your mind out of your current situation. I wish there was another way, but being knocked is not the worst thing I've ever been through in cricket.
In the end, Elgar took a lot of pride from his efforts, saying it was sort of a personal reward for him.
"It's nice bruises. At least I have something to show for this Test match. It's a little personal reward I guess."
Elgar's gritty innings also came for effusive praise from his captain Faf du Plessis.
"We know Dean has got incredible mental toughness. I think that is his biggest strength as a Test cricketer. He prides on being gritty, being tough, even being ugly and nasty at times. He likes that because it gets the best out of him," du Plessis said.
"Mentally, it's the biggest challenge after being hit a few times last nigh to come back this morning and put on a display of batting like he did was incredible," he added.
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