The two biggest issues the Minnesota Wild had this season were substandard goaltending and a lack of quality top centers. I see two pretty reasonable explanations for this outcome. One explanation could be that the Wild have lacked a younger, quality, top two line center for quite some time, and could desperately use an upgrade at the position, and that need is larger than getting a new starting goalie.
The other explanation is that the goaltending had an abnormal off-year and will return to form in the next season, so perhaps that need isn’t as important. I don’t think this holds any water though.