All classes are overpowered, especially from Level 11 on. So yeah, rogues are overpowered too. There has been several threads about power comparisons and there has been consent, that the answer depends on your play style as well as playing and party mode. There has also been quite some (although not perfect) consent among the experienced players, that rogues are among the weaker classes in the game (in relative comparison to other classes) because they lack AoE Damage and AoE CC effects (plus some consider them squishy).
I still like playing rogues over many other classes although I consider them the weakest class by far (or should I say I like them BECAUSE I don't consider them as overpowered - but still overpowered - as the other classes). It does not make you a bad person if you love a class that many others consider weaker than other classes (but still overpowered). It's totally fine to say that.
So please continue to love the rogue - it's about enjoying the game and liking your characters, not about relative power.
If you like rogues fine, they are fun to play. But that doesn't make them any better, this is the point.
The relative strenght of tge various classes is a complicated matter and in a sense also a sujective obe, since it is heavily influenced by party composition and playstile.
For example the best dps in game is a druid with priest/paladin and chanter support, you will never reach something like that with a rogue. But that doesn't alone make the spiritshift build the " best" char in game.
On the other side i like to play solo, and i found barbarian to be much more reliable ( more hp and endurance) and strong ( much higher dps in a crowd, and from lvl 11 you can clean entire encounter with 1 shot) than rogue, at least with my playstyle. That didn't prevent wodjee to achieve an ultimate with him. But to be honest the simple fact that him did the ultimate with the rogue was considered exeptional by itself actually because is much harder than do the same with other classes.