whoo-hoo! compots! It's terribly fun to make them isn't it?
I can't really help you with the Agar question, sorry. the two flasks i have received came deflasked with very little/no agar on the roots, i did rinse them with luke warm water to make sure there was none hiding somewhere on them though.
The tiny corms: the most effective way in
trying to keep them alive is potting them up as a clump, but don't expect them to live... they are small seedlings that aren't really ready to be out of flask ( it happens to all flasks... there's always runts) but if you plant them as a small clump that can improve their chances by increasing humidity.
And i have another piece of advice... place a fan by them. I've done it to mine and i'm not sure if thats why 85% of my vandopsis are still alive, but it's worth it to mention it to you
I do know t helps the moss dry faster which means less chance for fungus to develop.
Hope i've helped

SPECTIBILE! thats a great one! they seriously grow like monsters! mine has had at least one cane growing at all times since October