There have definitely been times that copying other people worked out well.
Fortnite and Apex copied the BR trend when PUBG wasn’t satisfying everyone’s needs. The former even lazily reskinned a zombie defense game for the battle royale approach. Lots of games reskin the theme of Dark Souls and do okay.
Even if it’s lazy or uninventive, once in a while one of those reskins has a particular element of the concept it reinvents in a much better way. Seems Concord never came up with any such ideas, which could have been great since many people are currently tired of Overwatch specifically.