I would expect that. Thor is already known as was the Hulk. So they di dnot have to delve into a history of either, they could cut right to the chase.
They could not do this with JL, Even the avengers had known players (Thor, The Hulk. Iron Man etc etc already has their first movies, I think iron man was already on number three, so he was well knon
The only really well known on JL was Wonder Woman, People seemed to not like BM vs SP so I am sure a lot of that bias was brought in Also. And only Superman had an actual into. Batman has yet to have his own movie in this series.
Me and my wife loved it, we are going to see it again this weekend. I just hope the negative reviews do not cause them to not do any more.