Which items?
The ones from BfA or the ones from previous expansions?
If you're referring to items from previous expansions, example:
https://www.wowhead.com/item=29529/drums-of-battle
http://db.hellfire-tbc.com/?item=28430 (had to look a TBC database as said restriction on the same was also dropped later on)
It's one of the reasons why almost any engineering gadget (such as Jeeves) still has a profession requirement.