I think the top level comment is based on the assumption that a greater quantity of objective data will lead to a greater weighting of objective data, and a lower quantity will lead to a lower weighting, leading to a greater weighting of subjective measures.

Likewise, there are many skills you can't demonstrate on the SAT such as Spanish language proficiency. For whatever reason I took the French subject test but no AP test, perhaps there are other schools that do this.

The math score might say a little about the other sciences, but the blmultilingual students are going to be disadvantaged by this it seems to me.

This is completely incorrect. The SAT is not changing to incorporate the skills that would have previously measured by the subject test. As a result we are simply going to have fewer objective metrics.

When I say "replacing" I mean in terms of the weight they carry in admissions.