I agree with most of your points, but one detail worth keeping in mind is that the "dinosaurs" depicted in the film are not necessarily reflective of their orig

I agree with most of your points, but one detail worth keeping in mind is that the "dinosaurs" depicted in the film are not necessarily reflective of their original species at all; InGen focused exclusively on producing animals (and plants!) that aesthetically matched the expectations of park-goers. The book offhandedly mentions failed prototypes exhibiting all kinds of problems, like tendencies to scratch their own skin off, and plants and animals are haphazardly juxtaposed from vastly different time periods and climates. Even following best practices from zoos would not necessarily prepare InGen to deal with accidentally hyper-aggressive faux-dinos that are not the robust products of natural evolution.