Rapinoe, who celebrated her team's ninth goal by sliding to the ground before leaping into the arms of the US substitutes on the sidelines, told Fox Sports she understood the criticism "in part", but defended her team mates.
Kyle, who made 101 appearances for Canada before retiring in 2017, later claimed to have been sent death threats in the wake of those comments and took to Twitter to clarify what she meant.
Commentators on Canada's TSN World Cup show slammed the displays of glee calling the behavior "disgraceful" and "disrespectful".
"I didn't love 'em", Danny Kanell said on Wednesday's edition of the "Kanell & Bell" podcast.
"I did say i thought it was excessive and disrespectful the goal celebrations of the American team once the score hit 8-0".
"As a Canadian we would just never ever think of doing something like that", she said. "Hats off to Thailand for holding their heads high".
"Tonight we knew that every goal could matter in these group stage games", Morgan said. But the celebrations that continued with each one irked some observers, more than just Kyle.
Fellow TSN analyst Clare Rustad, a former worldwide with 45 Canada caps, and veteran Canadian midfielder Diana Matheson, who is missing the tournament through injury, also criticized the American behaviour while noting the importance of goal differential. "I hope they could have won with humility and grace but celebrating goals eight, nine and 10 the way they were doing was really unnecessary".More news: Canadian Government to Ban Single-Use Plastics as Early as 2021
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Thailand's deflated coach Nuengruethai Sathongwien said she had no excuses, adding: "We accept that they are better".
Opinion was split following the one-sided match, with some applauding the Americans for staying focused throughout, while others felt they should have eased off or not celebrated their goals with such enthusiasm.
Women's World Cup favourites the United States of America showed the world exactly why they held that status when they annihilated their Thai opponents 13-0 in their opening group F match on Tuesday.
US coach Jill Ellis hit back at suggestions her players could have eased up and spared 34th-ranked Thailand complete humiliation.
As little as the US women report earning, they're paid far more than women across the world, according to World Cup players who shared their earnings with the New York Times. Few, if any, men would think about a celebration of that nature.
Was the USA really doing too much, though?
The Thailand rout set a number of Women's World Cup records. Celebrate. Would you tell a men's team to not score or celebrate?
According to the Times, Thailand women's team players reported making anywhere between $5,000 to $6,300 dollars on the high end, while the USA women reported earnings between $167,000 to $350,000.