Confirming the report is very helpful. In terms of character development.
And besides, how is it possible? People played for 3-5-7 hours straight, and there isn't 5 minutes to write the words: "Confirmed. Thank you for the game."
Think about it, a person played, gave it their all, and they are deeply upset that they lost. How else can they relieve stress? To express it, to let it out in the form of a detailed confirmation – this is the most civilized way.