Ant-Man could defeat Superman, says quantumn physicist

I know how much you like to label 'irrelevant' the things you don't like but your say so doesn't make it so.
Goodell hired Wells. Relevant.
Wells did what Goodell wanted him to. Relevant.
Wells hired people who could and would do what he - and thus Goodell - wanted. Relevant.

If a DA - or Goodell - wants to put his finger on the scale to make sure someone is found guilty or not guilty through the use of intermediary agents, they can. You're just pretending Goodell and Wells and Exponent and Marlow are incorruptible. That's not a valid argument.
The fact is that Exponent's report has flawed science. Since Marlow approved of it, he's therefore incompetent or dishonest.

Since this is about comic books which are not real, it's not that simple. Anything can defeat Superman as long as the person writing the story says so.
If a writer says quantum mechanics combined with comic book technology can hurt Superman, then quantum mechanics combined with comic book technology can hurt Superman.
The 'magic' in this context is the sufficiently advanced technology which no real person can understand because it doesn't have a real basis in science and is thus indistinguishable from magic.