While I agree with your sentiment in general Beagle.. Crossing the channel should be a time to call London Information. Although a Flight INFORMATION Service isn't required on a general basis.. an ALERTING service accross the channel is vital.
"Golf Charlie Romeo Alpha Papa - Headcorn to Headcorn via Headcorn currently abeam Headcorn, estimate Headcorn at 12" on the other hand could manage with a listening watch!