Agreed. Ealing's bus network is better than many cities'. But it is larger than many cities, to be fair.
The Greenford branch is a useful diversion / route for freight, especially with the OOC severing - probably keeping it viable, I agree that it doesn't really have a huge purpose today.
Converting to a Central line branch (either towards Ealing Broadway, or indeed, facing and running up to West Ruislip as a feeder for West Ealing CR) - doesn't really seem worth the squeeze.
The Greenford branch is a useful diversion / route for freight, especially with the OOC severing - probably keeping it viable, I agree that it doesn't really have a huge purpose today.
Converting to a Central line branch (either towards Ealing Broadway, or indeed, facing and running up to West Ruislip as a feeder for West Ealing CR) - doesn't really seem worth the squeeze.