Well if you PON, it's also better to not use your starters yes. Either you go full or you don't go. Half glass is bad.
If there's a good chance of winning with starters and a PON, and if there's no intent to force a third game, I'd disagree. Trying to finish the series in 2 while building up enthusiasm for a game 3 as the worst case scenario seems like a good bet. It would also depend on a team's depth, as if they don't have depth then the injury risk might be too great, but then again they might just have the injuries in game 3 and lose either way.