<modsnip>. Your "legal terms of art" are correct. However, it is not black and white as you try to portray.
There are instances where the same type of dna/hair/fingerprint found might be considered circumstantial in one case and direct evidence in another.
ie...man rapes wife...if his semen/dna is found inside of her, his hair on the bed, his fingerprint found at scene, these would all be considered circumstancial, as there are other conclusions/logical reasons these items could be there....
Now take a woman raped by random perp...a man that has never been in her residence, someone unknown to victim, and this random perps dna is found inside her, hair and fingerprints are found at victims residence, in this instance, it is direct evidence.
A quick, simpler explanation is if a piece of evidence can lead to a conclusion believed beyond a reasonable doubt, it is then considered direct evidence.
While the legal statements you cut and pasted from the first place you found on the Internet are generally true and factual, not every piece of evidence can be painted with the same brush. A piece considered circumstantial in one instance can be considered direct in another. Plenty of case law showing this.
<modsnip>