WRT shore based artillery, a FOG-M with a 60km capability would be somewhat short ranged for that mission, but since this would be a secondary purpose for the battery, a range of 60km is almost double the range of a 155mm cannon shell, so sufficient for the primary tasking. Also since Polyphem was a project from the early 2000's, it seems pretty straightforward to extrapolate a much longer range from that technology today.
As far as the primary anti shipping task, if we were to settle on a FOG-M, a missile such as Polyphem can also be carried and fired from ships and helicopters as well. This actually plays into one of my other arguments in procurement: buying in bulk to gain economies of scale. Using a long range FOG-M (or indeed any) missile which can be carried and fired from vehicles, ships and aircraft against a multitude of targets means you can not only buy more of the munitions, but can also have some complimentary effects (a battery on shore can fire at a ship, but a Canadian ship can also support forces on land as well).