The GLBs were actually uploaded - they just got marked as hidden in the panel during publishing, which is why they never showed up for you. While sorting that out I found a second problem: the textures weren't embedded in them, so simply switching them visible wouldn't have helped much.
I've been on it since morning. I'm attaching the correct textures and re-exporting everything from source. The update will include GLBs with textures embedded, glTF versions with a separate texture folder, a fully cleaned-up and reorganized .blend file (you wouldn't recognize it), and a fresh FBX set in both LOD and non-LOD versions. It'll be up by the end of the day.
Beyond the raw files, I'm also planning a full Godot project port of this pack - proper scenes and materials, not just the meshes. It's a large pack, so that side will take me a few days.
Thanks for the report.