Meta is *descriptive*, not *prescriptive*. It's not a myth, because it is merely a description of the state of balance within a game.
Bash builds are *sometimes* strong in group play as a harder form of CC, but generally very weak due to having poor sustain. Bash builds are annoying more often than they are threatening to kill people. Bash sorc, built well, is about the best a bash build can get thanks to streak, and even that is not such a big threat.
Bash builds as a mechanic aren't even in the same ball park of top tier threat as strong RoA builds are.
The question you need to ask about builds is not "can this build kill bad players", it's "can this build kill mid to top tier players reliably without getting killed first".
Nearly everything can pass the first question. On the second, more crucial question, bash builds fail, while RoA builds do not fail. Good players know the counterplay to bash builds. Good players, within the window that CC immunity happens to be down, have extremely limited counterplay to RoA. On NZ ping even good line of sighting doesn't help, because you'll pulled from behind what, on your screen, appears to be a wall. And you'll be pulled again and again while trying to reposition to turn the fight because you don't get CC immunity until it comes off cooldown, meaning the RoA player (or worse, players) potentially has complete control of your positioning within a uncomfortably long window.