There are material differences between Poulter and Daws, or at least the team believes that there are, because they gave NHL time to Daws and not to Poulter.
They should in no universe have Poulter or Malek be the 3rd goalie, goalies with no provenance and no NHL experience as the third guy is a bad idea. If they lose Daws to waivers and this is how things end up, so be it, that means they acquired a decent backup I would hope, but that is a lot better scenario than them deciding that they have to get a 6th round pick for Daws instead.