On the contrary! The author has decided to provide efficient, immediate, communication, instead of vaguely planning to send a more detailed reply later if she maybe gets around to it.
If everybody treated email this way it would be 100x more efficient. If her reply doesn't contain the info you need, just reply back asking for the info you need, and she'll reply within minutes.
I once worked with a senior engineer who would write incredibly long, detailed emails to the point that his manager would ask, how do you have time to write these and not complete this (underspecified, unrealistic) task? He ended up getting PIP'ed and fired. I counseled him many times to keep his emails to 4-5 sentences tops. He just couldn't do it.
It leaves some things unsaid, but better to say them once. Like I sometimes reply "OK" or "got it" to a long request by a manager when I have nothing further to say, but if i DO have questions/concerns, they know I will say more. With that shared understanding, receiving an "ok" saves us both time and energy. Its really great.
If that assumption is wrong and involves millions of dollars or hundreds of person-hours, what happens to your company? This is only good if the response CAN be brief and still be adequate.
A counter example is Nintendo, where Sakurai was literally recorded, so people wouldn't be confused about the project status and what he told them to do.
https://www.polygon.com/2013/11/20/5127488/a-day-in-the-extr...
I've found this to be less and less true these past years with the rise of Slack.
These days, most of my email inbox searches come up empty because what I'm looking for actually happened in Slack.
"Hey boss, here's a quote for the thing we buy, can I please get your approval for the spend?"
"approved"
That's perfectly sufficient, and it's a single word.
Also I've found single word replies are a nice way of telling if it's actually the big boss that's replying to you, or their PA :)
I see that as efficient communication. No BS
The author has decided to provide poor communication because she can’t handle her inbox. One word replies can be extremely misleading and will cost her more time overall than reading and replying to her emails properly. I would be fuming if I was her boss or worked for her.