Hi, this page does a decent job of describing how high-ratio shortening differs from regular shortening: https://www.bulkbarn.ca/en/Pro...atio-Shortening-1049. There are other (better) resources out there on this subject too.
But, basically, high-ratio shortening has emulsifiers that retain more moisture and give cakes a moister crumb. (It also withstands high heat without a slick mouth-feel, as you discovered, so many bakers use it in icing). That all being said, it would probably make your gingerbread dough softer and puffier. But, the best way to know for sure is to test it in your recipe, as the quantity of dry ingredients and leavening in your recipe will certainly have a bearing on what this substitution does in it.
Please let us know how it works out!