Do you have a sage or shadow? Those classes have the most utility. Guardians have nothing on either of them.
You are literaly the first person I've heard complain that guardian tanking is too easy compared to other classes. Based on your in-depth analysis and a few other things (randomly starting a thread to whine about a class, weak grasp of facts, few actual details provided or apparently deemed necessary, random exaggerations, etc) I'm going to say it's just your opinion and as far as I'm concerned it's not worth much.
it is easy Mode compared to vanguard tank.