Well you have to keep in mind Beaulieu's 31 points had him tied as the team's top point getter. It's doubtful Mailloux would've had 47 points if the best forward on the team had 31 points like it was for Beaulieu. And I'm not sure how missing a bunch of time somehow a positive for Mailloux. It's a negative, it's something that he will have to overcome and hopefully does.
People are letting what Beaulieu eventually did (A whole lot of nothing) colour their view of how he was seen back then. For example here's
ESPN having him at 44 among all NHL prospects (Set in January 2014 so not a perfect comparison date wise), and I remember him getting as high as the 20s at some point in some of these type of lists. Whereas today Mailloux is listed as #73 on
HockeyWriters. Obviously these are just examples of what is essentially a few peoples opinions on prospects, but the point remains Beaulieu was seen as a guy with similar potential to Mailloux today.
And in any case like Beaulieu, what will decide Mailloux's NHL future is whether gets better defensively. I like Mailloux's chances of doing that because unlike Beaulieu he'll actually have support and an environment that promotes player development instead of Lefebvre and Therrien being in charge and spewing nonsense.