Try as one might, instinct overrules all reason in some multiplayer games.
Eliminations are the “in” thing these days where everyone gets credit for a kill if they put some damage on a target (see: Overwatch, Destiny 2). However, plenty of games are still very much about getting the final blow and kill credit. To that end, stealing kills while your teammate did all the hard work is remains a guilty pleasure. It’s essentially a free kill. What’s not to like, aside from the rampant hate?