In the veterinary office, the surgeon may be both the anesthetist and the operator. One can only direct one's attention to so many things at one time. For an operator, when attention is commanded by the operative procedure, the anesthetic must come secondarily. Usually, much more often than not, it goes well. It is higher in veterinary practice.
Standards of care are different.
I am in the same boat as the rest of you when it comes to having my dogs anesthetized. I worry also. Most of us do not have the luxury of an expert veterinary anesthesiologist or a veterinary college nearby. My vet has no other Belgians in his practice. Many vets will never have cared for a Belgian before yours.