If Preston is all that's available to them for social mobility, then why stop them? A 'poor' degree is better than no degree and no a-levels. It's obviously not going to be any comparason to the likes of Oxbridge/UCL, etc. but the students are probably already well aware of that. I'd even say it shows a lot of gusto to be able to get up and earn a degree from having nothing. It wont get them into say, the top 100 companies but it will certainly help in other areas.
Agreed, I have no A levels just two AS levels and a NVQ 3, 4 in Accounting and Finance.
I then went to Huddersfield Uni (shock horror) and completed my degree in Accounting and Finance (BA Hons)
I applied for a Grad Job in one of (I think) the top 100 companies and my application was accepted. I have now changed to another Grad scheme in the same company.
The company are now paying for me to complete a Bsc Hons Degree.
So to call me worthless is way off the mark.