I was actually surprised to find there is a whole field devoted to researching and mitigating jury biases...

My suggestion:

It was a revelation to me [to find] that there is a whole field devoted to researching and mitigating jury biases, though their research could arguably be easily used to exploit jury biases...

revelation

noun rev·e·la·tion \ˌre-və-ˈlā-shən\

: a usually secret or surprising fact that is made known

: an act of making something known : an act of revealing something in usually a surprising way

: something that surprises you

Merriam-Webster

I was actually surprised to find there is a whole field devoted to researching and mitigating jury biases...

My suggestion:

It was a revelation to me [to find] that there is a whole field devoted to researching and mitigating jury biases, though their research could arguably be easily used to exploit jury biases...