I did read your comment. You're wrong. A few generations (1.5 years) would not plausibly have this effect. I doubt even a hundred generations would be able to select for something so significant since it's a weakness that all exoskeleton insects have. Insects have remained largely the same for millions of years.

I never said it wasn't possible, I said it wasn't plausible for it happen on short scales of time such as this study.

You're being pedantic, but you're still wrong.