Yes you could.
They should be pitted if blended since the seeds contain cyanide. A guess on my part is that reducing the particle size will make cleaning harder. A siphon should work well pulling wine out of the cherries.
Process wise I would be tempted to run pressed juice and if I wanted to extract more flavor, take the pulp and steep it with 1 to 1 water/ pulp in the fridge, then repress pulp and combine this with the initial batch.