Giant Cockroach Nymphs give meat scraps rather than mutant scraps (Ex 11133)

The issue is more or less in the title, Giant Roach nymphs (non-plague version) give “scrap of meat” when butchered, in difference to their parent (also non-plague version) which gives mutant meat and organs. Given that “scrap of mutant meat” is already an existing item in some recipes, I assume that this is unintentional? If so, there may be other mutant animal variants that are intended to give mutated meat/organs/scraps that do not, but as of yet only the roaches have been noted in my game. Given that I am playing experimental this topic was intended more as a possible heads up than anything (as denoted in topic guidelines: The Garage).