Urkidding do you want to know something quite funny. Every year, the parents of our students and the students in the SSLC (Student led committee making recommendations on our courses) say that they want more contact time. I offer, on one course, approximately 50 odd hours contact time, including lectures, seminars, personal tutor time, I'll even see students individually over a few weeks and go through their essay technique if they need it.
Every year, approximately 1/3 attend everything, 1/3 attend in a patchy way, and 1/3 don't attend at all!
We don't let PhD students teach any lectures at all, only run the odd seminar.
Our feedback is exemplary, unfortunately often over 50% of students don't pick theirs up! I email it to them directly so they can't escape.
Unfortunately parents are sometimes not told the whole truth by students.
This may include the real reason the OP's son failed, as failing both first year exams and resits is quite hard to do, as in our institution, you can fail one course without leaving, and the pass mark is set really very low. There must be a reason why he failed, as it is really quite unusual, either partying or mental health reasons or just not able to keep up with the academic requirements. It's that conversation that needs having, as going into a second year having failed the first is only going to exacerbate these problems.