It was a year and a half post draft. Brannstrom looked good, but solid in the AHL is not enough to shoot up a players trade valuation.
Draft position is a much better measure of value 1.5 years post draft than articles by guys like pronman.
A writers opinion is not the NHL gms opinion. Hence why, again, the highly drafted glass was untouchable (eg Desnoyers) and the later drafted, progressing well player would however be available (eg, But).
Vegas kept their highly drafted guy untouchable in negotiations for Stone, and in negotiations for Erik Karlsson. They were willing to give up the later drafted guy.
"The Golden Knights were ‘98 percent’ close to a deal for Erik Karlsson leading up to the deadline. The two percent was the one player Vegas was reluctant to give up — Glass. The team’s first ever draft pick was deemed untouchable. Ottawa was persistent. Instead, Vegas continued to counter for one of Suzuki or Brannstrom"