Physician scientist here: this study is a bit dated. Many of these issues have been "solved" (depending on your threat model) within the last ~7 years. Most healthcare systems have adopted Imprivata [1] for SSO, where physicians tap a badge and are connected to (usually) a VDI session of Epic.
What this study misses is the real driver of EMRs: billing. EMRs exist to facilitate billing documentation to charge for patient care. Yes, they have other benefits (like viewing lab results), but if you ever see true critical care (at the bedside, in an ER, or in an ICU) little depends on the EMR (or even labs for that matter).
A few comments here talk about patient notes: in most clinical environments, inpatient notes are useless, and a tedium required to bill. They're filled with copy-pasted jargon to meet insurance company requirements. True patient care happens in less than ~1 paragraph of text called a handoff. [2]
[1] https://www.imprivata.com/
[2] https://bmjopenquality.bmj.com/content/bmjqir/7/3/e000188/F2...