As enjoyable as it was Black Panther was very average movie. Wonder Woman (DC) was better, but both were hyped up by critics as the best thing since sliced bread and felt like agenda pushing.
This will probably be in the same vein and it will be a huge success for Marvel.
Interestingly these agenda pushing movies tend to be a huge success in the US/Canada, but don't do as well outside the North America. The more standard Surperhero movies usually do much better outside North America.