Good point about the duty rate on the fuel but GA has been providing pilots to the airlines FREE OF CHARGE for years.
Very few airlines now train pilots with free cadetships now and so a further charge would make it less attractive to pepole to pay to get a CPL/IR.
The cost to the airlines of £60,000 per new pilot would far exceed the small fee that they could get per aircraft by charging GA for the LARS service.
In the short term this may look good to the airlines and the Beanconter who introduces it will no doubt be flushed with his success but the beancounter will have moved on to fu** up another industry with his short term plans leaving the airline owners to pick up the pieces after the he is long gone.