Looks like it is. Perpetual license for all cameras except Sony is €348, but Sony Only license is €99. I'm a canon guy for now. So, I'd like to pay €99 for canon only version, but none available. So why do Sony consumers get a special deal?
I believe it was developed in association with Sony - so instead of Sony developing something equivalent to Canon DPP maybe they have paid Capture One for the privilege.
Its always been the case, I always assumed the sony version had a reduced option set, maybe that's not the case? Why not ask them the question directly, would be interesting to see the reply.