Why this happened from my experience patenting through UCB and dealing with Harvard is that UCB does not have the best patent department when it comes to helping inventors draft patents that are defensible in terms of pushing for sufficiently general language, or including defensive dependent claims (like for use humans) for precluding people patenting specific extensions as Harvard/MIT did in this case. (They just put my patent memo in the appropriate legal format with a few minor modifications.) In contrast, Harvard/MIT as organizations are far more serious about intellectual property and have the legal departments to reflect it.