I have worked in similar situations to these nurses and I continue to call bull bollocks that poor resources and poor staffing is in any way an excuse for the criminally negligent behaviour of those nurses
I've had shifts where I've been the only nurse for 90 plus residents, including respite (temporary) residents who go into end stage of living needing extensive palliative care input and playing fax the provider who lives in another city and cant come to the facility because they had a full patient list in surgery. And you know what, I got it done. Not because I'm super nurse, or remotely remarkable in any way, but because it needed to be done.
Lack of resources, crap staffing is not EVER an excuse for nursing negligence such as outlines in the original post.