Not alone at all.
I have raised a similar question in the past.
How does the drop algorithm work?
I run similar content across all my characters.
Two stood out as I ran them to 50.
One was teeming with recipes. Lots of common and uncommon recipes(sets). Two rare recipes(purple sets) a week
The other, having run the same content and at 50 too, had two recipes(sets). Two. Total.
I have a farming-type character.
Consistently got one to two purple drops run.
This is not farm bashing, so don't.
Also, my characters are consistently naught ... hmmmmm