Tanking Frustration: I blame WoW

[Duelle]

However tanking in this game is hard because of how (My assumption) Warcraft evolved tanking to be so faceroll.

Never make this assumption. It might be safer to assume the people who are pulling are being reckless and stupid, because the first thing WoW will teach you is to efficiently label kill targets and follow kill order to actually make it through pulls. Most of the fast gameplay tanking I've learned was while playing WoW (before it was Aggression-spam and pseudo DPS in Lineage II as a Shillien Knight and FFXI's version of PLD which played slow as molasses). What you are suffering from is a case of bad players. We all get them, some more often than others. Hell, I still remember that Titan run where the heals and DPS couldn't figure out to move out of his frontal line attack that pushes you off the platform.

DPS classes I play with automatically start going buckwild on mobs I just pulled (Namely Bards and BLM) before I can even get a Savage Blade or Flash on them.

You have to open with Flash, and better if you run ahead to get some aggro during the pull (it's a shame we don't have an ability like Charge that let's us rush to the enemy; then your opener would be Charge => Flash to start things off). Assuming you labeled your targets, focus on 1 but tab and finish combos on secondary and tertiary targets as needed. Usually alternating Flash in between steps of the Fast => Savage Blade combos helps a lot. Combo'd Rage of Halone pretty much becomes your tool to solidify aggro and (most importantly) recover it if someone is stupid and attacks a mob they're not supposed to.

[Solragor]

Never make this assumption. It might be safer to assume the people who are pulling are being reckless and stupid, because the first thing WoW will teach you is to efficiently label kill targets and follow kill order to actually make it through pulls.

You haven't played WoW in a LONG LONG time, have you.

[Duelle]

You haven't played WoW in a LONG LONG time, have you.

I played from vanilla all the way through Mists. I also did it as a prot warrior, which wasn't the easiest class to work with through TBC (where our threat coefficients and rage generation were nerfed), saw a surge in performance during WotLK (where Shockwave was introduced along with the Devastate buff + Glyph of Heroic Strike), was gutted with Cataclysm's rage redesign and finally ruined when they decided to copy-paste DK active mitigation to all tanks in the game during Mists of Pandaria.

Even after CC stopped being mandatory in dungeons kill orders and so on were still important and contributed most to efficient kills. Some manage to progress in spite of not learning proper gameplay (not unlike the dead weight WHM 7 of us had to carry through the end of the main storyline), but the existence of such people does not deny that proper gameplay does exist.