I was surprised to see architecture on that list too. It's probably another of those degrees like law which sound great in theory but more people train than there's real places for.
With most of the professions, the degree isn't actually that useful and doesn't make you an architect, lawyer, accountant, actuary or whatever. You get your degree and then you get a "training" job in a firm where you do the professional exams and get your required practical experience. People without "relevant" degrees can do exactly the same but usually have more professional exams to do. It's often quicker just to leave school after A levels, get a trainee job as a trainee accountant or whatever, and take your professional exams alongside working - you end up with the same professional qualification, but in less time and without £45k of student debt!