I think you're confusing two things: whether these MBAs are good or bad in general, versus whether or not they are effective routes into management consultancy firms. Durham and Bath are very different from each other, but both business schools have an MBA that easily meets the standards for accreditation. But the number of roles in management consultancy firms is really limited in the UK, and they fill up their firms from a small number of firms. Bath is okay as a route into IBM, Lloyds, BAE, BP - but not into consulting. Durham has good relationships with Deloitte and HSBC - but not into consulting.
If you want to get into strategic management consulting in the UK, then the best route is LBS, Insead or Harvard. The risky road is Oxbridge or an MSc at the LSE. Bath and Durham are nowhere on that map. That does not mean that they are not good MBAs, but they are not good enough for those firms.
I think you're confusing two things: whether these MBAs are good or bad in general, versus whether or not they are effective routes into management consultancy firms. Durham and Bath are very different from each other, but both business schools have an MBA that easily meets the standards for accreditation. But the number of roles in management consultancy firms is really limited in the UK, and they fill up their firms from a small number of firms. Bath is okay as a route into IBM, Lloyds, BAE, BP - but not into consulting. Durham has good relationships with Deloitte and HSBC - but not into consulting.
If you want to get into strategic management consulting in the UK, then the best route is LBS, Insead or Harvard. The risky road is Oxbridge or an MSc at the LSE. Bath and Durham are nowhere on that map. That does not mean that they are not good MBAs, but they are not good enough for those firms.