It was really only two years (2018 at +5 and 2019 at +8) that the Brewers went crazy on their pythag, otherwise it was 2016 (-1), 2017 (+1), 2021 (+2), 2022 (+1) and 2023 (+2).
But yeah, six straight years on the right side of the ledger (even if only by a win or two) is still a pretty impressive run either way.
This year's model has definitely gotten the lion's share of their positive run differential from blowout games.
BRef defines a blowout as a game with a margin of five or more runs. The Brewers are 25 W - 7 L in such games with a +128 run differential. That means for the other 103 games the Brewers have a +5 run differential and are 54 W - 49 L.
For comparison here are the other eleven current playoff teams with their blowout records and run differentials in those games...
KCR (31 W - 14 L) +112
NYY (32 W - 17 L) +98
PHI (31 W - 17 L) +79
MIN (26 W - 15 L) +72
ARI (24 W - 21 L) +59
BAL (22 W - 15 L) +51
HOU (25 W - 19 L) +48
CLE (21 W - 15 L) +46
LAD (17 W - 14 L) +45
ATL (22 W - 14 L ) +42
SDP (20 W - 18 L ) +37
Pretty nuts that the Brewers have seven fewer blowout losses and almost 100 points of W% (.781 to .689) over the next best blowout team.
Obviously not a perfect one to one comparison, but the minimal number of blowout losses and not having a losing streak longer than three games as of yet kind of gives me 2010 Packer vibes where they never trailed by more than a touchdown the whole season or whatever it was.