A popular (and welcome) take on the vaping situation is coming out to support medical consumers as a type of victim of the circumstances. There is a level of scientific understanding that is a necessary, and still incomplete, part of the discussion. For example, some of the dominant methods of lab testing for cannabis (plate culturing) are based on food safety protocols that are generations old, incorporates a system of understanding that is not the only means of testing or understanding (genetic sequencing, for instance) and, while we have learned a great deal mastering the current testing, we may be missing important safety concerns.
Another critical area of growth at hand is the clinical understanding of the implications of mainstream cannabis consumption. We have some information, but there is always more yet to learn. In order for Cannabis Medicine to catch up with the accomplishments and accolades of modern Medicine, we must overcome generations (and engrained systems) of academic road-blockages. Still more stands in the way of a well-oiled, safe cannabis-consuming culture, and that is reproducibility of clean product and the assurance that a consume is obtaining (and consuming) clean, safe product. These are solved, perhaps with regulatory oversight and technology, either within the public or private sectors.
For example, one of the elements of the current medical market that is still in need of close inspection and consideration is the potential contamination of vaporized products related to the construction materials of vapor technology itself. Devices are often made with metal solder which can contain and propel cadmium and/or other metals that are unhealthy for consumption. Similarly, heated plastics and other construction materials may be unsuitable as conduits for consumption by inhalation.
See https://www.cedfoundation.com/2019/09/05/vape-gate-2019-review-of-the-risks-of-vaping/ for a more complete review of some of these elements.
Nevertheless, it is wonderful to see public interest and discussion on this subject, which seems to touch on never common to many. Open-minded discussion, incorporating differing viewpoints will help us all grow to become a healthier and safer, cannabis-consuming culture.