It is saying it if you know how to look at the numbers. It certainly says it to me.
If a player doesn’t get as many opportunities, his stats should suffer.
Mark Canha, for example, is a home run hitting machine. But he is never among the league leaders. While he is awesome at hitting home runs per at bat, he doesn’t get as many at bats. Therefore his home runs suffer.
But if you look at the single number to evaluate home runs, plenty of hitters hit more. Not because they’re better in many cases, but because they get more chances.
WAR, like all stats, measures accomplishments. Not ability. Fans like to use the two notions interchangeably, but that doesn’t make it right...