Well it's more than popular "opinion". The Corolla has been beyond reliable.
.....
Many "facts" are just interpretation. Recall that the world was flat at one time! It was a popular opinion the late 70's that Japanese cars were scrap. It was also popular opinion that the Japanese couldn't build a car to compete head on with Mercedes.
My point is that there are lots of choices put there now that give you way more car than the Corolla. It will take a while for the masses to catch up.
Well, you know how it is. They have to keep perpetuating the mythology. We are seeing it now being created for another brand from across the Pacific.