Mailloux was drafted 31st.
Of the 32 first round picks that year, only 13 have played a full NHL season so far (only 4 of them Dmen).
Of the 8 dmen picked in the 1st round, only 5 have more NHL games so far... 4 of them were top 10 picks & 1 only got spot duty in Chicago this year given their major roster holes.
Mailloux has been better in the AHL than the other first round dmen who haven't made the jump yet.
Frankly, I'm not all that high on Mailloux's ceiling, but your take is completely absent of any realistic context. As far as NHL prospect dmen, he's easily on par or ahead of the curve relative to his draft class peers.
Look at the defenders from the class. Power/Edvinsson/Hughes are clear success’ Clarke looks good too.
Lambos and Ceulemans are going to be outright busts. I have zero doubt with that.
Allen/Maillioux are both are unimpressive defenders who couldn’t crack really weak defences in their D+4. Certainly not tracking well and both don’t pass the eye test. Allen has a better chance as a shutdown guy given more development, though I’m doubtful.
Ryker Evans/Olen Zellweger have made the show, and look promising.
Buium looks decent, but Detroit has so many young defenders, he’s going to get caught in the numbers game. Then Morrow looks like a good one, just stuck behind a really good defence in Carolina. Orlov/Burns replacement.
Chayka/Roger//Nause all Busts.
Heimosalmi/Grushnikov/Peart/Iorio/Behruns all don’t look great, and all I’d call busts at this point although I have a soft spot for Grushnikov since he’s a mean MFer and can hit and play defence.
Then JJ Moser is a top-4 defender.
It’s quite easy to project how these kids are going to turn out from here.
I’m Mailloux’s case, if he doesn’t crack the lineup with Montreal, the team that picked him even with his demons, the team that wants him to succeed more than any other, the team that put all that time and money into his development. He’s not going to make it with anyone, because no one is going to care about him as much as the team that drafted him. Every team out there has prospects like Mailloux.