Allaire's impact extends to Switzerland, where his annual camps played a role in the rise of NHL goaltenders Jonas Hiller, Martin Gerber and David Aebischer.
Hiller said that outside of Tobias Stephan, who played 11 games with the Dallas Stars in 2007-08 and 2008-09, every Swiss goalie to make the NHL since the mid-1990s had ties to Allaire.
"So no Francois probably no Swiss NHL goalies," Hiller said.
Along with Warren Strelow, who started with the Washington Capitals in 1983 and worked with the New Jersey Devils and San Jose Sharks before passing away at age 73 in in 2007, Allaire helped open the door for goalie coaches who hadn't played the position in the NHL.
Though the job existed before Allaire and Strelow arrived, it had been primarily former NHL goalies sharing been-there, done-that advice. Allaire brought a more technical approach to the position, and now there are more NHL goalie coaches who didn't play in the League (18) than did (13).
"Frankie gave credibility and showed the importance of a goalie coach," said Mitch Korn, who started with the Buffalo Sabres in 1991 and coached 25 years before moving into a consulting role with the Washington Capitals this season. "It was so hard breaking into the NHL in any capacity having not played in the NHL, and he was able to do that, so I thank Frank for paving the way and opening doors that have given people like myself and others the opportunity."
Allaire's coaching style became a hot-button topic later in his career, especially after his departure from the Maple Leafs in 2012. Critics argued his approach was too rigid, too robotic. Giguere, who was with Toronto at the time, fit some of those stereotypes but points to Allaire's work with Semyon Varlamov of the Avalanche, who was a Vezina Trophy finalist in 2013-14, as an example of the coach's ability to adapt.
Biron didn't fit any of the Allaire stereotypes and said they are miscast.
"I was not a typical Francois Allaire-type goaltender when I grew up," Biron said. "But as I got older and then worked at the goalie school, I realized this is not just a style. Goalies at the time were, 'Oh, you are butterfly, that means you have to go on your knees.' No. His vision was the amount of work and detailed work and skating work and positioning work that goalies need to do to implement a certain style at the end of it. So, if you wanted to be a butterfly goalie and go down on your knees to make a save, great, but everything before -- all the movement, the squareness and all that stuff we are stressing today -- was all being done in the '80s by Frank."
His teachings continue today, a legacy his pupils say warrants a Hall of Fame nod in the builder category.
"It is a no-brainer," Giguere said, "and every goalie that had Frankie will tell you the same."