There's some important points missing from the '88% have offers' title...
- 400 people applied for the course.
- 20 were accepted into the course, after interviews and screening.
- 17 were "ready to work at the end". (does this mean passed?)
- 14 got job offers.
So the prospective employers can be fairly certain after all of this that the student can code, and that's what makes it so attractive to them. For the student, I'd imagine just making it into the course itself is quite hard but if you do get in then you've got a good chance of success.