"Why did you throw out that trial but kept this trial" is a very basic question that any scientist doing proper work should be able to answer. Maybe some scientists do a bad job of it. But it's very much in the realm of STEM education.
"What questions are worth asking" is also very important. You see that in grant applications, when people develop their research programs, in faculty hiring decisions...
What you're criticizing isn't STEM, but it could be bad STEM.
Ironically the remedy for that, and for scientists who are poor at statistics as Belen mentions, is...more STEM.