A page-wide hit rate sitting this high tells you the sample is doing the heavy lifting — early August means thin squads, pre-season rust, and defensive units that haven't yet settled into shape. That inflates BTTS across the board, and it's why five teams sitting at a perfect record should be treated as a starting point for research, not a signal in itself. Six matches is barely enough to distinguish a genuine attacking setup from a run of weak opposition.
The Scandinavian lower-league names dominating the top of the table — Gottne IF, Umeå FC Akademi, Odd II — are worth a second look specifically because those leagues carry a structural BTTS lean even mid-season. The underlying tendency is real, but right now the noise-to-signal ratio is at its worst. Back the league tendency, not the hot streak.