TLDR I think scoreboard can help improve build efficiency/players, a toggle would be nice.
I do agree that reviewing scoreboards can make you feel a certain way, sometimes negative.
I posted an alternative to end of match scoreboard solution if you want to read more. End of mission summary (in hub) - Warhammer 40,000: Darktide / Gameplay Feedback - Fatshark Forums (fatsharkgames.com)
Every match has a flow with players, and after time the scoreboards don’t matter as much. Good Players are able to identify who is performing well, and who is struggling, what player is focusing specials/elites/boss/etc. I think in the long run the majority of players who play Darktide on a regular basis would like a more in depth summary. It helps identify weaknesses in your build and also identify other players builds to maybe try.
Long story short, I agree that it should be a toggle option. Something along the lines of “skip end of match summary and go straight to hub”. I might even choose that considering some of the loading times currently.