And cutting Bath - Bristol Airport capacity by 25% isn't a bad thing as it isn't like it's heaving at the moment. But Chew Valley could do with a more regular service and it might take a few airport passengers too! I don't see it being a bad thing!Sorry, missed that in your expanding list of routes.
However, point still applies. You're removing half the journeys from densely populated areas (like Keynsham and South Bristol) in favour of routeing it via villages of a few hundred people and that doesn't make sense.
**EDIT - just realised that this 139 will run only every two hours so actually you're dropping the Bath to Bristol Airport service by 25%. Also, given the running time.... Bath to Chew Stoke is 45 mins and Winford to Airport is 10 mins. The 2.7 miles from Chew Stoke to Winford is 10 mins in a bus so 1h 05 compared to 1h 10 on the A4.