Do you have any experience in the moto world? There at mesh garments, ie summer gear, that have CE rated padding; primarily, jackets, gloves, and boots. The butt and knee padding in some moto pants might even make your ride more comfortable.

I'm not suggesting people swap their lycras for leather. Bicycle gear as a category is not roadworthy. There is suitable gear, especially in the moto gear category, that is. Especially for ebikers.