How is it baseless, if no other organization would want to swap their entire player/pick pool with Vegas that would mean they should've been worse than the majority of teams. Even if we narrow it down to roster only, i'd argue there would be less than 5 teams willing to do that swap. Logically, a team full of 3rd/4th liners and castoffs that have never played together and had to learn a new system would mean they should've struggled.
Also, the teams that have had great depth have never made it far in the playoffs. Over the years San Jose, Minnesota, St. Louis, Columbus, etc. have all had great depth... arguably better than this Vegas team at times. They've never come close to winning the cup.