You would think, but this movie doesn’t show much conflict between them, until you add in the government and politicians, who are the ones suppressing the supers because they believe the supers can’t save anyone without damaging the city. This is even directly acknowledged in the scenes following the Underminer fight. Add to that the fact that the ambassador that was attacked is the one who fully and openly supports the supers, and I think this is a lock.
I suspect this is another one of the weird things going on in the movie.
(And, even if you wanted to make the case that “They” doesn’t include the politicians, I’d say my argument still holds, as that law is only ever really brought up when we’re dealing with the Parr family. You could even replace the word “politicians” with “supers” and get the same argument. Sure, the law is mentioned a couple of times by Winston and the others, but I think that’s more like backdrop. There’s a post somewhere on here about a man and a dog trying to get a cheese burger in a war zone. I think this is like that, but in reverse.)
[Edit: Found the post. Quick story development using dramatica chart]
In other words, this movie appears to be in the same Genre (and, yes, I do mean Genre) as Captain America: Civil War, but flips it on it’s head.