This is a very interesting question and as I am only now becoming a student of nutritional science and learning about the possibility of using insects as an alternative source of protein I didn't have a clue about the answer to your question. Because you've put me on the spot and I hate to say 'I don't know' I did a bit of research that I hope readers find useful. According to a study by the US National Lab of Science, larvae of mealworm and superworm are protein-rich and purine-low meat alternatives. In contrast, cricket nymphs are protein-rich and purine-rich and cannot be recommended for people with hyperuricemia or gout.

In regard to the possibility of modifying the protein in crickets to reduce the harmful purine this may be possible but I was unable to find any information as to whether or not that is being done or at what scale.

Thanks for making me smarter!