I thought Jesse Pollock made an interesting point in the latest Bardown video regarding this LTIR shite. To prevent a player (like Stone, always Stone) from returning right on time for game 1, make it so a player has to return within the last 5 regular season games. Every game they miss during those final 5 count towards missing a playoff game. If it were me, I'd make it that you'd have to return within 5, maybe even 7 games, and if you don't play in all of them, you miss the first round.
To play devil's advocate, nothing Vegas has done is technically against the rules. It is however blatant manipulation of a loophole that the NHL is doing nothing to fix. If they don't acknowledge that the hockey world is collectively up in arms about Vegas perennially abusing a flaw in their system and do nothing to fix it, they're even worse. It'd be hard then, to not accuse them of being bedfellows.
I know it's bad form to wish injury on a player. So let's just say, I won't shed a tear if Mark Stone is forced to miss the remainder of the playoffs be it from reasons clean, or otherwise. Him and the Golden Shites can frig right off, bud.