As is fitting with what other people have said in this topic, I’ll link to my response to the comment you’ve linked here:
From what I’ve experienced firsthand playing both Vet and Arbitrator on a multitude of setups, and other people in both pugs and premades; I’m much more firmly in the same camp as @Vror and @brosgw from what I can tell from their comments. I’m not saying any conflicting viewpoints are incorrect per se, but I just don’t feel the same way at all due to these reasons. Both classes are incredibly strong options; I just truly fail to understand how Arbritrators are a direct replacement for Veterans in the vast majority of content as people are claiming 