Thinking upon this while I slept today, I think the sheathless option is a good one. Not just for those that want to make their own, but also for those that don't really like Coyote Tan, and would rather have a different color kydex offered, they can order the sheath they want, rather than having to order another sheath and have one floating around..
For those who don't see a use for the MOLLE back, it's great for guys like me that like to carry horizontal, or for guys that need to attach it to gear where they might not have it in their line of sight, or just can't guarantee it's staying in place (like soldiers, mountaineers, etc), the extra retention options the MOLLE back offers are worth it. So if you ever might wantt o carry it inverted, horizontal or strapped to your gear, you might want to get the MOLLE back.