I agree. I just feel this 7-0 was an outlier for more than just the result. If I was analysing our defense then I would not concentrate on this match as it was far from typical of how we set-up......I hope.I'd be interested in whether the same is true for other teams though, it's not that unusual for an otherwise good side to have a big loss once a season. Just need a few key injuries or something like that and to come up against the wrong side.
Admittedly losing by 7 is unusual, but I'd guess most teams in the league will have conceded 5 in a game at some point in the season.