If the warlocks are going to roll on high spirit items, I’m going to roll on ones without spirit (if I want to wear them).
Any warrior tanking a 5 man is probably a dps main. He needs the crit gear as well as the defense gear.
Unless you run with master loot in 5 mans, you can’t control how people are going to need gear. And if you are looking for a tank, you probably need to accept that this tank is a dps main and will roll on gear accordingly. And really should because he is using both sets of gear. Gear matters more than spec in Classic.