that’s projecting an emotion to suit a bias and then trying to call it otherwise. Being a ‘numbers guy’ tends to mean that people reject pertinent context in favor of what they already want to think because they are suiting an ‘emotion’ and then decrying a presumption that someone not agreeing with that must be ‘emotional’.
While it’s generally better for people to play heroes that play better than not, you’re also faulting people for ‘dying’ in a team that doesn’t have the usual mitigation provided by a healer; you made a topic about people playing a ‘blame game’ and you are here playing a ‘blame game,’ just not to them.
People don’t accept a ‘truth’ because there’s actual little by way of ‘objective’ means to project it, especially if people think it is by numbers. For them, they’re telling you a ‘truth’ that their capacity to soak a superior amount of damage dealt (from 3 heroes) created enough space for the limited contribution on the other side to win the game; while they may have had doubts, it sounds like they still played it out, thus they contributed and suited the functions of their role, so their ‘truth’ is that they thus carried.
They also have stats they can tote to reaffirm the same ‘truth’, but in a different perspective and use the same rationalization to disagree with what you said to them, and thus they should tell you the ‘truth’ so you don’t have an over-inflated ego and then apply that to ‘real life’.
If someone follows the same process and comes to the same conclusion, then that is ‘truth’ to them, and if simply calling a few statements a ‘truth’ would convince people away from their bias and ego, they’d have already been ‘fixed’ before the ‘problems’ of that game were shared.