The Pacific Theatre is just different, as the Australians are discovering with their own HIMARS. While 500km is impressive in the NATO context (it lets you shoot from Riga into Minsk or Pskov) —distances in the Pacific are measured in thousands, not hundreds of kilometres. Hence why things like the Long Range Hypersonic Weapon/Dark Eagle are so important. The US is also bringing back ground launched Tomahawk, made famous in the Cold War.
With Canada getting into the Tomahawk game anyway with the River-class, ground launched Tomahawk might be a natural fit for Canada — if we’re serious about the Pacific.