I always say it in these types of regression stories, but it's annoying that they have these antagonists that appear pre-jump that are so terrible, but nothing is done about them. Why get us worked about them if there is no punishment or anything coming to them? Why even make them a character?
He should have at least punched the dude, he threatened your business and all your workers!
"I Reincarnated as a legendary Surgeon" is particularly awful for this, as the dude has his entire life ruined (job, relationships, everything), before being murdered by his old boss... and that's it - no closure on the opening whatsoever.