1) Simplified bodies is something I would not go for, mostly because I like details about fingers being cut off. However it's possible to make it an option you can toggle in the launcher, so I will do it. Thanks for the suggestion.
2) Simplified leather is already in. Simplified meat is not that important because you don't make anything out of it (and you cannot stack it yet anyway, so it does not matter if you have wolf meat [5], jaguar meat [3] or meat[5], meat[3]). The reason why leather names are important is that items made out of animal leather tend to have rather longer names, so using standirtized leather makes "spotted wobbegong leather hood" into "leather hood".
Also note that Genesis has DIFFERENT types of standirtized leathers. Suede, leather, hide, scale, tanned chitin, dragonscale. They all have different material values and price, but they are generalized, so you won't have "abcdefghijklmnopqrstyvwzyz suede trousers".
3) Clothing is much more different in Genesis than in vanilla. Different armors/clothing types have different coverage values, so it means that you can hit past even a platemail (in some slit I suppose) if you are using a dagger if your skill is very high/you are lucky.
Also clothing does a lot. Socks for example soften blows, can save from nasty cuts and really well shield from temperature. You will get frostbite if you travel in cold areas without socks, and sometimes they can protect you even against magma if you walk on some spilled magma shortly.