I used to work on Cambridge Business Park - the line was ripped up even along there despite the fact that the busway stopped at the main road into Cambridge by the Science Park.
Locals were fiercely anti and there is still a feeling in the area that the Public Enquiry was 'fixed' in favour of this project.
My view is that it is a giant white Elephant that is going to saddle the residents and taxpayers of Cambridge with a mighty debt to service over very many years. I used to commute along the A14 from Huntingdon to Cambridge and, although I just missed it, I do know that the introduction of average speed cameras along that road has brought a substantial improvement in traffic flow with a reduction in accidents. One example of a situation where cameras do work BUT that is on a road that is working at, IIRC, 200%+ of design capacity.
I would have used a rail link especially if, as suggested, it continued to link to the ECML and had a stop at the Science Park. As it was there was no way I would have exchanged my tin box for a bus.
The decision will be seen as a great mistake in the years to come.