So you shouldn't have empathy because it's a waste of time and emotion? That seems like a depressingly selfish outlook on life. I understand not trying to get up in arms about everything but to just ignore it...
I think he was trying to express the importance of resilience. Things that happen, stay happened. So the best outcome for yourself following misfortune is to move ahead as best you can.
Personally, I don't think that stoicism is a good fit for modern times, because it conflates virtue with foregoing strong emotions, and leaving other people to their mistakes.
It does have its share of worthwhile lessons though, and if you dig a little deeper you'll find that it encourages guiding and explaining when people are wrong, rather than getting upset with them about perceived moral or practical failures.
