Technical diving costs a lot in terms of time, money, and training. The standards are much higher, and the margins for error significantly smaller. This tends to create divers who, by design, are much more aware of their surroundings, have a much higher skill set, and tend to be much safer when executing all of their dives, even simple recreational dives.
In contrast, recreational divers tend to skate by with little in the way of foundational skills, poor problem solving, a general lack of situational awareness, and perhaps worst of all, an ignorance as to exactly what those problems are and how serious they can become. It's not their fault, they truly don't know what they don't know. It's a product of recreational agency standards, lax instructors, and business driven cost cutting decisions rather than emphasizing the production of good divers, despite lower margins.
It doesn't have to be this way. Yesterday I went diving with 7 co-workers. Myself (technical, cave, ccr, and a scoobydoo DM), another who is a Master Instructor for several agencies, and 5 open water divers who had no dives beyond their training dives. 4 were PADI trained at a shop up the coast. The other was RAID trained. The disparity in skill set between the single RAID diver and the PADI divers was incredible, and it's due to the time spent on foundational skills prior to even throwing on gear for the first time. When your first day of instruction is nothing but an entire pool session spent on buoyancy, trim, and propulsion sans gear, there is a significant difference in terms of baseline skill set.
While everyone had lots of fun, when comparing the list of things observed by the divers while filling out their log books, when comparing air consumption, comparing dive time, it was clear that the diver with superior foundational skills, despite having the exact same number of training and open water dives, had a much more fulfilling day of dives than those who were held to a weaker training standard. I was fortunate enough to be the solo diver in the group, and the discrepancy in skills was plainly observable from both up close and afar.
The cost for this is more time spent on foundational skills, a focus on doing all skills in trim, neutrally buoyant, and in mid-water. When an instructor expects this level of performance from the student, they start off as good divers from the beginning. Most instructors are poor teachers in the first place, and are often incapable of teaching students other than parking them on their knees on the bottom and performing the skills by rote mimicry. Unless this changes, new divers take responsibility for finding competent instructors, and agencies change their focus to producing good, competent divers, as opposed to the standard cash grab, basic scuba training will continue to produce divers such as those you recently encountered on your little excursion.