people said the same thing when the first guardians of the galaxy teaser dropped.
they said it would be Marvels first flop.
One year later and everybody was saying "we are groot"
No they didn't man.
Most people figured it would be a hit after the Comic-Con crowd went nuts during the trailer that leaked.
I get the point you're trying to make but the vast majority of people were interested in "GOTG" from the jump. A vocal minority said it would flop.
I just pulled up the "GOTG" thread, you can check it yourself.
This trailer is very , unlike the first Guardians trailer.
Fred.