A quick look at BusTimes shows that the Borstal 155s interwork with the 133 to Cliffe, which has a 75 minute round trip time, so they add together to give two well-utilised vehicle workings.
My last trip on the 155 had 5 passengers leaving Maidstone, 3 of whom had alighted by Aylesford. One other made the short trip from Eccles to Burham. Unfortunately this route has passed its sell-by date. It is facing a typical rural problem - as older village dwellers die off or move away, the chances of their replacements not having a car are very slim indeed. The new development of Peters Village is not bus country - why would it be with house prices starting at circa £400,000?
Also worth noting that the infrastructure for Peters Village originally included bus gates and more circuitous routes for cars, has been constructed in precisely the opposite way, making it faster and easier for cars, with increasing journey times for buses. I suspect the prime retail destination from Peters Village is neither Maidstone, Rochester nor Chatham, but the tin sheds and free parking at British Legion Village, quickly reached by car, but very slow by bus.
The recipe is, I fear, likely to re-occur all over the country in the coming months. Even the DfT seems to have accepted it - the extension of Bus Recovery Grant only requires 80% of mileage from July (down from 90% at present).