Why is this niche xp buff seem so widely unknown?

So anyone who isnt aware, dual hitting weapons can grant bonus overkill experience. Can easily test at low hp mobs fyi like goblins : 5hp=20xp but the hits roll independently so you can effectively hit 5-5. Depending on max hits you can get bonuses of up to like 100xp per kill for melee stats. This makes the nagua xp rates better than intended for sure with -flat, it’s cool to abuse this right?