A few things with this movie - I use MOS as the bar in terms of tone, reality, so straight from the off set, it felt different to previous DCEU movies, Intergang and their weapons/vehicles stood out like a sore thumb in a world so far that to me had been as realistic (with exceptions) as they could.. it was explained, it just felt very futuristic and maybe deserved a better origins of sorts.
I liked the carnage of BA stepping out into the world, but once he befriended the family of sorts, the movie changed and felt weak.
I wanted the West to send in military and try and negotiate and have Shazam appear, on behalf of Amanda Waller to help ease matters - the west see BA as a threat and game changer, the west would have no bargaining tool over the nation and thus lose out on minerals, money etc.
I loved the fact it was highlighted the west and their heroes were a no show until it suited them - that angle showed have been played up more. I liked the rock - he didn't seem a threat or any different than Batman in BvS. I liked the JSA it just felt rushed sadly.
The JSA - terrible introduction, way too gimmicky at the start and felt like an x men knock off.
Had Dr Fate, HM appeared and negotiated, explained who they are, we see a montage of them in the 40's, 60's, fighting oppression, bringing justice, BA would have been able to relate, esp to HM, but HM to me seemed just as aggressive and heavy handed at times as BA.
The final third was rushed - I didn't buy BA just handing himself in and it wasn't necessary either.
In summary, an enjoyable film with good points, but largely forgettable if it was not for the cameo.
To me, once BA was free and word was out and the carnage caused, the west should have instantly felt threatened and it should have been BA against the west, with the JSA/Shazam acting as peace negotiators to show the west he's not that bad, to show BA he has potential and they can work on it. Could have some cool scenes with the UN and a one many army, could have explored the JSA place in the world and how the west manipulates the media.
A side story could have been the kid trying to reach out to people via social media and the Daily Planet to what really is happening - BA just defending his nation from a manipulative west.
Do I want more BA? Hmm... I want him as a villain but I feel he's too nice now to really be a villain, unless ofcourse he gets set up and played.