Moses said:
Obviously failing would be rubbish. I'd question where the first is from, of course... it's not as though all firsts are equal. A 2:i isn't the same everywhere, etc.
I think QAA would argue with you there. There is actually quite a rigorous quality system in place for Universities and the degrees they award. I would suggest the difference between a first at a "top" university and a first at a "low" university would be marginal, academically at least.
Look at somewhere like Blackpool and the Fylde College for example - rated TEF gold, rated the highest performing large college by the SFA, higher graduate earning potential than a lot of "proper' unis, awarded the right to award their own foundation degrees ("full" degrees are awarded by Lancaster), competing with established universities at events like BCUR etc. Established universities are losing their edge - more flexible, better managed and more student focused institutions are giving them a run for their money, especially when employability versus academia is factored in.