Green Items drop rate in Dungeons

So I was farming a bit in low level dungeons of the classic content and noticed, that the drop rate for green items from trash mobs is way too low.
For instance I did 10 runs in BFD and cleared all of the mobs - at the end of the day I got exactly 2 (two!) green items from trash. Heck I even got 9 rare blue items with a drop rate of 0,02% which should be way more uncommon than greens.
Same happend in other dungeons such as deadmines or sfk.

This surely ain't right is it?

This seems to be issue with vanilla/tbc dungeons, I tried farming greens in Hellfire dungeons for enchanting (tried both n and hc modes), literally 1-2 dropped in hours of farming, so I just gave up... In wotlk dungeons drop rate seems fine.

It is a bug that's been here for a few months, aka the purple boe's got buffed drop rate, led to nuking the price of them to near worthless, and greens from vanilla onwards just straight up more rare then blues lol.