you never know... last year I bought some bareroot elderberry plants. One of the plants had a 2 in long root that had broken off in planting. I had nothing to lose, so I planted it. Nothing appeared to happen for months, then suddenly it sent up a shoot. By the end of summer it was 2 ft tall and more shoots coming up at the base.
So I say those little impossible cuttings might just do it. Pot it and leave it, for the whole season if needed. Don't judge that it didn't make it too soon. It may take a while but maybe it will produce a nice little tree.