Yes, that's because they're RUNNING gloves, not gardening gloves or climbing gloves or biking gloves or horse-riding gloves or....They're designed to be lightweight, very packable with a high weight to warmth ratio. Buffalo mitts also have no grip in their palms - they're not designed for gardening either.
Indeed, as you also complained above "The problem with most gloves is that they have windproof/wind resistant material only in the outer part of the glove and the palm which is usually covered only with fleece, gets cold very easily". However, prism gloves do have insulation in their palms too to stop them from "getting cold very easily".