It feels weird to frame this as an EU objection considering that Greece has also put the same kind of ban in place. It's specifically France objecting.
But for other Brexiteers, the policies help illustrate the flexibility the U.K. has outside the EU on matters which would have previously been subject to lengthy negotiation under the Commons Fisheries Policy — and which Brussels and member states are outright hostile to for their own reasons.
Brexit benefits! We could never have done this as EU members without a whole load of negotiations, please ignore that we're still dealing with a whole load of negotiations over it and also that EU member Greece did it on a larger scale than us!