The draw back at uni is time wasted on unnecessary subjects that make the course take the required length of time. For example if you go through a small school full time you can easily finish your CPL within 12 months and be out trying to find work where the uni students will still have two or three years still studying. If you can find a job you could be 1000+ hours ahead of the others. That’s IF you can find a job! As many are finding it’s not quite that easy.
I don’t have any figures on how competitive cadet shops are but anecdotally I’ve heard a minimum of 4-5 applicants for every slot (when they are doing them).