I think you just slightly missed my point. Style of construction can run constant for one team for an extended period of time, decades occasionally. But even if it isn't a few things will hold true stylisticalyl.
Boston is actually a prime example -- be they good or be they bad, most Sox teams were slow, AVG/OBP and power driven teams that lived or died on the merits of their starters. But even where there were speedy eras in Boston (and there are, more than a few) those teams were built at least somewhat to take advantage of the patterns of the grounds. and in one big example, the grounds were built to take advantage of the patterns of a hitter. Most of you know why the bullpen is in right field in Fenway. And most of you know why we were pioneers of the structural bullpen for that matter.
The point is that these stylistic variations are a confounding issue. And when the difference is small, little variations can be big confounders.