Not familiar with this incident but not seeing any signficiant issues in treatment from info provided in this video. I would be worried if there are more PEP failures. PEP is super effective but it's not 100% effective, location of the bites definitely plays a role. Coincidentally, an elderly died a few years ago from rabies after PEP in Northern Minnesota. That report didn't go very deep but made a suggestion to measure NAb titer, make sense as might as well after spending the money on immunoglobulins but it's not a protocol yet.