The $55 million budget allows for this potentially risky film to have a lower bar for success.
A budget of $55 million is a mere fraction of the price tag of the DCEU films thus far and most superhero movies in general, which often cost well over $100 million.
This is definitely a low-risk play that could pay off huge should the film hit with audiences.
If it makes $100 million opening weekend, then it is a smash success.