OK but some issues

My son had an ok time on the trip to Belize but there were some issues. My guess is that they overbooked the tour, such that four teenage boys had to share beds (my son says single beds, ARCC says Caribbean doubles which are smaller than US doubles) for four nights. Who makes teenage boys share beds for four nights? Also, he felt like the amount of diving was too small (the itinerary says a week on the "private" diving island but I think it was actually four days) and the buggy jungle portion was too long.