Eh, I think acquisition cost is a major factor here. A bubble playoff team that either misses out or refuses to pay for one of the bigger names might be willing to gamble on Monahan, assuming he's somewhat healthy, but only if price is cheap enough, i.e. a mid round pick.
A team like the Avs, with all their injuries, might just decide that this year isn't worth going all in. But if Monahan just costs say a 4th, then that's a fairly low risk gamble. It's an easy win if he stays healthy, gets 15-20 points and helps them secure a playoff berth. On the other hand, if he can't stay healthy, it was just a 4th round pick; hardly an irreplaceable loss. But if the Habs are demanding a 2nd or hell, a conditional 1st, then it's an easy no because there's no scenario where Monahan, given what he is right now, is worth that. In that case, better to do nothing or look elsewhere for a low priced acquisition.