I mean if they genuinely believed he'd miss 4-5 games or whatever and he ends up missing 8, that really sucks given how thin we are and the cap situation, but it's not like some kind of criminal mismanagement.
Even if they had up Hajek or Jones, I don't know that much would change. Hajek just isn't good, and while Jones can do a lot more with the puck that Harpur, I don't think he'd help much with the defensive breakdowns we've been seeing. Plus I don't think they really trust Jones at this point.