MIT leadership had a duty to act reasonably, and they didn't. MIT's position should have been that, at most, this amounted to trespassing and matter for the Cambridge PD. Aaron Swartz was no threat to MIT's network. They might not have prevented subsequent events, but they failed, horribly, by not speaking up for a reasonable outcome.
MIT's IS&T office had a knee jerk security-oriented reaction, and was over impressed with interacting with Steven Heymann, who is a fixture at the sort of conferences where Swartz's "crime" is inflated out of proportion.
It's not OK that Heymann, Ortiz, and MIT's personnel who overcooked this case contributed to the death of Aaron Swartz. And it's not OK they got away with it so far.