True to some degree. There are more players with very little understanding of the game than most people realize.
I have a real life friend that I lost touch with for years. I ran into him one day and discovered that he had been playing for as long as I had (at the time, about 7 years). He had never raided, which I understood because it is not for everyone. But he had never even HEARD of LFR, which had been out for years by that time. Almost his entire gameplay, thousands of hours, was just leveling characters and questing and doing holiday stuff.
He seemed pretty happy, so I didn’t even bother to try to expand his horizons.
Years later, he still plays and I haven’t for quite a while.