Oh, I highly doubt that... the probability percentage of stat drops is programmed into the hero's "nationality" and doesn't depend on artifacts. If you experienced such results, it was just a coincidence plus the randomness factor.
Once - it was a fluke, twice - a coincidence, three times - it's a system.
Based on my experience, I see a system that consistently works, with exceptions being very rare.
Творят настолько черные дела,
Что до таких блистательных идей
Не вдруг дойдет и записной Злодей
Темный адепт клана GODS