Two things on this: one is that, to be fair, their deepest training, the hippocratic oath, as it is usually summarized: “First, do no harm.” The second is a strong corollary to that, but more complicated, and something we T1s kinda take for granted but is in fact very peculiar if not unique: they are prescribing us a dangerous, potentially deadly drug, and totally relinquishing control over how much we dose ourselves with it to us.
Taken together, those two things add up to something that goes strongly against the medical grain. One can think of other dangerous pharmaceuticals that are only administered under direct medical supervision, and not a few more that are left to the patient to self-administer but at a set, medically-declared dosage and time of day. But none of those constraints apply to insulin, where there’s just no way to do it but to let the patient administer it him or self, at varying amounts multiple times a day, 24/7/365, according to formulas subject to multiple variables environmental as well as biological, each of which is subject to change day by day and hour by hour. In effect, we have to train ourselves in a medical discipline that is outside the training of non-specialists (and even some specialists seem to be fairly clueless), whether we have any particular scientific bent in our nature or not.
And whereas the risks of running high are, up to a point, pretty long-term, the risks of overdosing are severe and very rapid, so that “do no harm” thing kicks in pretty strongly on the “look out for HYPOS, ya idjiot!” side of the equation.
I totally share the frustration from our side of the fence, but I do get where the hypo-fear comes from on theirs. I think it’s analogous to how parents of T1s feel when they have to send their kid off to school and trust her to manage it on their own. No matter how well trained they are, it’s just a sketchy situation from the caregiver’s side.