Sadly, they are utterly illogical.
There is still time for a ferry leaving at 00h15 hours on a Monday to return and resume its normal schedule for the day.So presumably the crew and passengers start to board at 00h01.
In the real world, the previous three hours will have been spent preparing the vessel, stocking the bar and cafeteria, getting taxis to take people to the ferry, hoteliers making sandwiches and so on. Or perhaps the Rev is only interested in the illusion of no Sunday working. After he has finished his work for the day and sent his customers home.
Understandably, the Rev deliberately omits to address a key issue about
seeking to defend their distinctive way of life.There were Sunday sailings until at least the 1930's, and I have yet to find anyone who refutes that, or who can tell me when or why the prohibition on Sunday sailings arose.
Was it really that the island was heathen until 1939, and was only 'saved' by the cessation of the Sunday ferry to Mallaig?
Actually, I think it was religious opportunism that made a spurious connection between piety and the cessation of the ferry service, and has tried to ingrain it into local 'tradition' as a false memory.
If anyone doubts the veracity of what I write, then visit the Transport Museum in Glasgow and find the timetable for London-Stornoway services (outside the railway ticket booth) and see the facts for themselves.