Most tanks are pressured into functioning as a DPS, so they spend more time doing dps combos instead of enmity combos. I saw a PLD pop Flight or Fight before Shield Lob. After that, he did his Halone combo, Scorn, then began to focus on Royal Authority. He did Royal and Goring combos two or three times and seem to only rely on Scorn and Savage Blade for enmity.

That said, the BLM, and sometimes the WHM, would take hate, causing us to get cleaved. Personally, I feel like if a DPS took hate, then they are hitting hard. That's what they are there for.