What makes you so sure said workstations had any significant value or access worth locking it down like it held the launch codes or something? According to one of the replies in the tweets you linked, pretty much everything would have been open information anyway.

All this talk from random internets about how "terrible" their infosec is strikes me as a bunch of armchair quarterbacking by people who think they know a lot more than they do... so basically your typical tech worker I guess.