Drop lost interest in outdoors stuff in general shortly after the X-Mid 2P launched, which is why solid inners haven't happened and the X-Mid is often out of stock. They continued selling it but didn't want to make further investment after they decided other markets (electronics) are their main focus. That led to them recently deciding to close their outdoor community, but since the X-Mid is popular they reached a deal with a different company to take over the development/distribution of it on their behalf.
Fortunately this new company is way more interested in tents (they distribute tents for several other companies including Sierra Designs and Kelty) so the X-Mid has a much brighter future now. They are ordering far more production for next year and have greenlighted new projects like solid inners. That'll take some time to show up (mid 2022) since things take time to unfold, but good things are in the works.
So yes I wish Drop showed more interest in the X-Mid and communicated better, but things are poised to be much better going forward without them directly involved. The new partner does have to re-invent some stuff like a website to sell them on, but the improved availability, planned updates, new solid inner versions etc will be well worth it.
I'm also doing new products on my own, so a superlight singlewall DCF X-Mid 2P is in the works that I'll have full control over the sale/distribution of (It'll be sold on DurstonGear.com). We're on 3rd generation prototypes of that now and it's going to be really sweet.