As Ernest alluded to earlier I think the more likely reason is offering relatively useless courses to students who have started to realise that they might actually be better off getting a trainee job or apprenticeship as that comes with pay and without the £9,500 'debt'
I may be wrong but I thought the real money is made by a uni from students outside of the Eu? The numbers of these aren't likely to be affected by Brexit as the rules won't change for them