The differences in race stats between players is absolutely negligible to the point where it essentially doesn't matter. Implying that this was the cause of a wipe implies that every player was operating a 100% efficiency (perfection) and couldn't meet the check.

The reality is that is likely not the case and the loss from the impact of missing a dot refresh, forgetting a buff, messing up a rotation, and so on is infinitely more applicable than racial stats as these things happen all the time. People make mistakes. You cannot assert perfection in a vaccum and then blame stats for a wipe.