Personally I don't think this trade can be chalked up to bad luck. When a team desperately in need of starting pitching trades a starting pitcher, even an injury-prone one, it's a move that's open to question. Breslow knew there was a reasonable chance Sale would have a decent 2024 (no one in their right mind could have foreseen just how good Sale's 2024 would be). If there was no chance, why in the heck would Atlanta want him? Why would they work out a deal with him giving them 3 years control over him?
The Grissom part is bad luck, so far at least. But the Sale part was not bad luck. It was a questionable decision that blew up.